Specifications headset can play out clear, detailed but powerful voice. For Asian fans to provide the highest quality hearing enjoyment Soul by Ludacris is composed of the United States of America glamor award winning singerLudacris founded the professional brand headphones, from development to production. Ludacris spent a total of 3years to completion.The purpose is to the headset can play out clear, detailed but powerful voice. For Asian fans to provide the highest quality hearing enjoyment. Accessories:SOUL universal no microphone headset line 1,SOUL Apple dedicated controlData line 1Earphone portable bag1Wipe clean cloth 13.5mm / 6.35mm adapter1SOUL English manual 1edition
Specifications 1. Support line in music from other devices 2. New design 3.line-in 4.OEM product most popular new private bluetooth headphone : Specifications:Wireless transmission distance: CLASS IIBattery capacity: 250MAHFrequency range: 20-20KHZSensitivity: 95DBSpeaker impedance: 32 ohmSpeaker Size: 32MMCharing time: 2HVoice Communication working time: 8-10HBluetooth Music Playing time: 8-10H(Based on two-thirds of the maxium volume)
Brand Name: ZONOKI Model Number: Z-B97 Style: Ear Hook Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) Color: red/black/champagne gold bluetooth ship: CSR Transmitter:: Class 2 Speaker power rate: 2 X 10mW Bluetooth edition: V2.1+EDR Packaging & Delivery Packaging Detail: color box packing 40PCS/CTN MEAS: 83x37.5x24.4CM G.W:7.5Kgs N.W:8.5Kgs Delivery Detail: about 15days Specifications 1. Ingenuity,back-hang design 2.High flexibility strength and toughness of the headset connection design A.Use range: 1. Pair with the Bluetooth mobile, wireless enjoy mobile phone music and incoming call.2.Pair with PC (with Bluetooth function or connect USB adapter), wireless enjoy network music; 3.Pair with PC (with Bluetooth function or connect USB adapter) wireless remote chat (support QQ, SKYPE, MSN, etc.).4.Support for iPhone, iPad, enjoy music and voice transmission wirelessly. B.Accompanying accessories 1. Z-B97
Specifications 1.bluetooth headset for ps3/pc/mobile phone/working. 2.for ps3 games chatting. 3.factory high quality Functions: 1.Bluetooth headset for ps3,take you ps3 experience to the next level with this wireless headset.2.Discuss gaming strategy with your teammates, trash-talk your opponents or just chat while play your favorite games.3.Immerse yourself in the complete gaming experience.4.Leave voice messages to your friends and family with xbox live message service. Features: function button for:answering,ending,on,off.LED indicator light.receiver/speakermicrophone rotates:225 degrees.power interface/adapter for charging the unit.ear hookdecrease volume key (-)1increase volume key(+)2 Specifications: signal output:bluetooth-v2.0,class2frequency band:2.4GHZ-2.4835GHZ,ISM bandtalk time:up to 8 hoursstandby time:up to 200 hours.data encryption:128 bits encryptedpower capacity:rechargeable li-polymerpower supply:5v DC,100-240V AC adaptersize:150*140*47mm
Specifications Mini Portable Bluetooth Earphone Small, fashionable, and carrying and keeping convenience Certificates:CE. FCC.ROHS Good Quality Mini Portable Bluetooth Earphone for Mobile Phone Built-in Rechargeable batteryCreative Wireless Mini Portable Bluetooth earphoneSmall, fashionable, and carrying and keeping convenience *Dual pairing supported*Bluetooth version 2.1+EDR, Class II*Bluetooth Profiles: HSP, HFP*Demension:47*16*12mm*Talk&Play music time: up to 5 hrs*Standby time: up to 100 hrs*Charging time:less than 3 hr*Battery capacity: 90 mAh*Weight:8g Packet content: 1x Bluetooth Headset &
Specifications 1)Supports A2DP with high quality stereo function 2)Multi-connection,connect 2 phones 3)Accepted OEM Feelymos Bluetooth Music Headset Specifications : ItemSpecificationVersionBluetooth V3.0+EDR Support agreementHands-free,A2DP ICCSR BC6145Talking time6hoursStandby time100hoursDimension51*16.5*9.5mmWeight8.1gOperation distancewithin 30FT(10m)Frequency range2.40-2.48GhzMusic playingabout 5hoursCharging timeabout 1.5hoursType of batteryrechargeable lithium polymer battery Features: * Multi-connection,connect 2 mobiles.* Bettery status on iphone.* With high quality music playing with A2DP function.* 80ma battery,with 8hours long time talking time.* Noise reduction and Echo cancellation* Transparent silica gel ear bud,protects your hearing,and very soft and comfortable Package content: 1)3C charger 2)2.5 USB line &n
Brand Name: KINDEN Model Number: KDB-3010 Style: Headband Communication: Wireless Connectors: Other Use: Portable Media Player Function: Bluetooth Place of Origin: Guangdong China (Mainland) Support systems: bluetooth wireless headphone Bluetooth protocol standards: Bluetooth V2.1+EDR Receiver range: 10m Carrier frequency: 2402MHz-2480MHz USB interference: High speed USB 2.0 Battery: chargeable lithium-ion polymer battery (3.7V/600MA/h) Charger power: computer USB interface DC5V;DC5V(500MA); Successive working time: about 12 hours Frequency response: 20Hz to 20KHz S/N ratio: _82db Packaging & Delivery Packaging Detail: Standard packing:40 pcs/carton Outer carton size:43*53*57cm Delivery Detail: 20 days Specifications new andhot selling bluetooth Headset can make any color extisting different design for choose CE.ROHS,FCC,BQB Specification:Static Current: Under 10UA Working Current: &n
Brand Name: kingartor Model Number: KA-M0584 Style: Headband Communication: Wireless Connectors: USB Use: Portable Media Player Function: Bluetooth Place of Origin: China (Mainland) Colour: optional MOQ: 1000 Packaging: optional Logo: customized logo Warranty: 1 year Packaging & Delivery Packaging Detail: opp polybag Delivery Detail: As per exact quality and customer's require Specifications 1.bluetooth headphone wireless headset 2.CE and Rohs 3.MOQ 1000pcs 4.OEM order welcome 5.Sample ok headphone wireless bluetooth headphone Features: 1. headphone wireless bluetooth headphone 2. Manufacture with competitive price & good quality3. Imprint customer's logo as request4. Excellent sound performance 5. Custom packing design service6.1- 2pcs free samples available 7.headphones for personal use, for gift to friends ,for company sales promotion ,for supermarket retail or wholesale or any other Enterprises or institutions requires
Specifications 1. Classic headphone with new design 2. Strong bass and clear sound quality 3. Metal ear cup decoration part NEW STERO METAL WIRELSS BLUETOOTH HEADPHONES FOR LAPTOP!! Product Specification:Super stereo music Crystal clear sound (black, and white, yellow, blue, multi colors)1.Correspond with V2.1+EDR 5.Working distance range:10m &
Brand Name: OEM Model Number: CM039 Style: Headband Communication: Wireless Connectors: 3.5mm Use: Computer Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) computer: headphone microphone Engjoying music:: 8h Standby time:: 200h Charging time:: 2.5~3h Packaging & Delivery Packaging Detail: Color box Delivery Detail: 3-7days Specifications Stereo Wireless Bluetooth Headset Headphone w/Mic 1.Version:2.0V 2.Feasible distance:within 35feet 3.4.Calling tine:9h Stereo Wireless Bluetooth Headset Headphone w/Mic Introduction:1.Bluetooth Wireless Headphone with Microphone2.Wireless chat online. (MSN, Skype, AIM, QQ...)Two-side real time wireless connection3.Motile, Portable Use for PC,Laptop, Netbook...4.Wireless operate the Music Player of PC (Controlled by earphone), 5.Former song/Next song, Volume+/-,Stop/
Brand Name: S2 S3 Model Number: HM1500 Style: Headband Communication: Wireless Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: gift box Delivery Detail: 1-2 working days after confirmed payment Specifications Luxury Design Wireless Bluetooth Stereo Headset Heart shaped Earphone Headphone for Universal Mobile phone S3 S2 lStylish clip-on headsetHM1500 is stylish clip-on design. Using a clip to attach the headset to your clothes, use a comfortable earpiece and microphone for the protection of privacy. lVibrationUse the vibrating alert for call notification in noisy environments or when your handset is on silent. lNoise reduction and echo cancellationEliminate unwanted background noise during calls with noise and echo cancellation DSP technology for crystal-clear conversation. lAdvanced multipoint-connectivity with two mobile phonesThe HM1500 boasts multipoint technology, allowing dir
Brand Name: OEM Model Number: BT-300 Style: In-Ear Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth,Microphone Place of Origin: Guangdong China (Mainland) Products Name: Popular mono wireless bluetooth headset Rang: 10meter Frequency range: 2.4GHz-2.48GHz Transmission power: class 2 Operating Power: 110-240V, 5V Mode: Hands free, headset, AV2DP, HFP, AVRCP Color: Black, White, Light Blue and Pink Talk time: 4 hours Standby Time: 100hours Type: Popular mono wireless bluetooth headset Packaging & Delivery Packaging Detail: Paper gift packing Delivery Detail: Within 1-7 working days Specifications Popular mono wireless bluetooth headset 1. Fashionable design, 2. Automatic Connecting 3. clearly sound Popular mono wireless bluetooth headset Specification: 1). Compeatible w
Specifications Wireless Bluetooth Headset(For PS3). 1. Its design is so functional. 2. It couldnt be easier to pair and operate. Wireless Bluetooth Headset(For PS3) Features:1. Beautiful design, wearing comfort and convenience of use 2. Functional and fashionable, it can add a spice to your life3. It is so lightweight and compact that you’ll hardly notice you’re wearing it4. Noise canceling design to minimize outside interference5. Produce crystal-clear sound and high-quality voice input for command recognition and voice chat6. It is so light and comfortable that you’ll hardly notice you’re wearing it7. Its design is so functional, you’ll rarely ever have to touch your mobile phone8. It couldn’t be easier to pair and operate Specifications: Dimensions:6x2x2 cm /2.36x0.79x0.79 inch Weight:97 g /3.42 ozColor:BlackPackage Includes:1 x Wireless Bluetooth Headset For Sony PS3 Black US 1 x USB cable1 x Earhook1 x Manual
Specifications one of the most comfortable gaming headsets, itaas easily paired to your P3 and intuitively controlled via the ergonomic volume Features & detailsThe wireless Bluetooth headset has been exclusively designed for gamers and gaming, not mobile phones! So you can now maximize your game time without an irritating, uncomfortable earpiece , and still hear your opponent creeping up behind you on your surround sound system!one of the most comfortable gaming headsets, it’s easily paired to your P3 and intuitively controlled via the ergonomic volume and mute buttons. we’ve even added reversible earhooks, so you can choose which side to wear it, depending on your preference.Ergonomic ControlsIntuitive controls that not only feel right to the touch , but also perfectly placed right where your fingers would instinctly expect them to be.Reversible EarhooksLefty or Righty? No problem, we’ve provided you with two Earhooks to suit.External SpeakerDesigned to sit com
Brand Name: sunrise Model Number: BH-214 Style: In-Ear Communication: Wireless Connectors: 2.5mm Use: Mobile Phone Function: Bluetooth,Waterproof,Noise Cancelling Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: Blister, polybag, color box, gift box. Delivery Detail: 3-5 days Specifications Stereo Bluetooth headset for Nokia 1.high quality . 2.lowest price. 3.fast delivery. 4.have big stock. SpecificationsStereo Bluetooth headset for Nokia1.high quality. 2.lowest price. 3.fast delivery. 4.OEM service. Stereo Bluetooth headset for Nokia Clip Stereo Model,superior Clear Voice Support HSP/HFP/A2DP Bluetooth 2.1+EDR Feartures: CE,ROHS,FCC,UL and BQB approvalExtremely good quality,superior clear voiceElegant and Fashion design Bluetooth Headset Stereo,Bluetooth version 2.1+EDRSupports HSP and HFP profiles and A2DPRechargeable Battery:Li-ionLong talking time:range up 6 hoursExtremely Light:Only 9gColor:Black,Whte,Golden and Sil
Model Number: EX-01 Style: Ear Hook Communication: Wireless Connectors: 3.5mm Use: Portable Media Player Function: Bluetooth Place of Origin: Guangdong China (Mainland) Colour: Black Packaging & Delivery Packaging Detail: Blister packaging Delivery Detail: 1-3days after payment received Specifications FOR PS3 EX-01 wireless BLUETOOTH HEADSET 1.Wireless and bluetooth 2.90days warranty 3.fast delivery 3days 4.Low MOQ 10pcs Features1.DarkLite illuminated feedback, perfected for dark viewing conditions2.20-degree variable mic arm allows movement away or towards cheek, working with contours of face3.Ergonomically designed controls allowing instinctive location of volume and power/mute.4.External speaker sponge designed to sit comfortably on the ear, without entering the earhole itself, allowing longer gameplay in comfort5. It offers excellent acoustic quality that would give a new definition to your gaming6.It's very easy to use and it has a tendency to stop any outside nois
Specifications 1.metal handsfree for Iphone,samsung mobile phones 2.accept OEM products 3.fast delivery 1.Plug Diameter: 3.5mm.2.5mmD800,KG800,K7502.Length: PVC 1.30 m 3.Speaker impedance: 32Ω4.Sensitivity: 100db5.the frequency response: 20hz-20 khz 6.Speaker diameter: 6μ,diameter10mm 7.chamber material: metal alloy chamber material made by the environmental protection8.drive-by-wire earphone
Brand Name: bluetooth Model Number: BH-208 Style: Neckband Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) color: white Packaging & Delivery Packaging Detail: package Delivery Detail: 3 working days after payment Specifications stereo bluetooth headset BH-208 High quality competitive price prompt delivery stereo bluetooth headset BH-208 Basic specifications of the brand BH-208 technicalstandard Bluetooth V2.0 + EDRChipset BlueCore2-Audio single-chip Bluetooth Headset Profile Profilesupport for all major brand Bluetooth cell phone modelsfrequency of 2.4GHzwireless transmissionpower Class2 transmissionrange is about 10 meters far75 mA power supply 220V battery charger when the lithium polymer battery 2 hourstalk time 6.5 hoursStandby time 150 hoursDimensions (mm) 42 × 23 × 11Weight (g) 13.8Gemperature -15 ° C - 55 ° C
Specifications Excellent sound quality with BC6130 V2.1+EDR -Bluetooth headset with digital recording-Records incoming and outgoing calls-Record voice memos-Store multiple recordings, up to 10 minutes-Record, play, skip, delete, and delete all functions-Recording audio indication-Memory full audio indication-Perfect for truckers, restaurants, and on-the-go business functionsSpecifications:-Working range: up to 10m-Bluetooth version: V2.1 + EDR -Blocks 4 times the external noise-Multi-point supported: 2 connections simultaneously-Simple pairing support-Maximum talk time: 6 hours-Maximum standby time: 150 hours-Headset to handset transfer-Comfortable over-the-head profile-Flexible swivel boom microphone for left or right ear-Volume adjustment-Low battery LED and audio indication-Attractive rubber coated designAccessory: -USB charger (optional)-USB charging line-User's guide
Specifications 1.High end wireless bluetooth headphone 2.A B channel wireless headphone 3.Volume Control 4.Adjustable in size 5.MOQ:100 pcs High end wireless bluetooth headphone WL-2008-172 Car IR Stereo TV headphone Infrared Headset
Specifications Stereo bluetooth headphone 1,Good design 2,Perfect sounds 3,Quite beautiful Stereo bluetooth headphone NameStereo bluetooth headphone MaterialABSColorBlack,green,red,white and more. DesignBluetooth headset designApplicationFor mobile ,PC,Tablet HD, Feature1. Answer calls,play/pause music directly from your headset, joy in HD stereo tone quality;also may use the stochactically present free cable to conect the auto device without bluetooth function. 2. Foldable design is so easy to carry. 3. Advancement of metallic which is superior to plastic style makes powful tone quality. 4. Adopting NdfeB to make bass, high pitch, stereo and dynamic sound,more excellent and natural. You can feel confortable even in several hours,benifit form the adjustable head band&super soft ear pad 5. Complete operation,you can put the cellphone in the po
Brand Name: ODM,ODM Model Number: BT-2 Style: Headband Communication: Wireless Connectors: USB Use: computer ,mobile phone ,music Function: Bluetooth Place of Origin: Guangdong China (Mainland) Supports: Bluetooth Headset, Handsfree, A2DP and AVRCP Profiles Standby time: up to 200 hours Battery: 3.7V 300mA Rechargeable Li-Polymer 3.7V 300mA Rechargeable Li-Polymer: Imput AC 100-240V, output DC 5V 300mA Specifications 1. Bluetooth Version: V2.1 EDR 2.Type: Stereo headphone with internal mic 3. Operation Distance: 10 m bluetooth stereo headphone balck color , wireless blue headphone for presonal at home & school. Specifications of bluetooth: Bluetooth VersionV2.1 EDRTypeStereo headphone with internal micOperation Distance10mRange of Frequency2.4 to 2.4835GHz ISM bandSensitivity85dBPC InterfaceUSB2.0Music FormatMP3 at WMAStandby timeup to 200 hoursMusic Playing Time7 hoursNormal Charging TimeWithin 3 hoursBattery3.7V 300mA Rechargeable Li-PolymerPowerImput
Brand Name: Ailipu Model Number: HP-104 Style: Headband Communication: Wireless Connectors: 3.5mm Use: mobilephone and bluetooth media player Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) color: attractive color optional Packaging & Delivery Packaging Detail: elegant gift box Delivery Detail: within 25days Specifications Modern design,comfortable to wear Hands free function Attractive appearnce High stereo sound quality Most favorable price Selling points:1 Modern design ,comfortable to wear with great popularity among the young adults 2 High stereo sound quality 3 Convenient function buttons brings more music enjoyment 4 Most favorable price 5 Two modes :bluetooth ,3.5audio input Specifications:Frequency response :20-20kHzSNR :over 85dB Power supply :3.5V-4.2V /60mA Working time :8-10 hours Output power : 80mWDriver Unit: Φ 45 mm*2Impedance :32 Ω Input interface :3.5mm plugBuilt-in microphone
Specifications Bluetooth Headset for iPhone 5; High SNR; Hidden omni-directional Mircrophone; No wire,no transmitter,no software,no setup. High SNR Bluetooth Headset for iPhone 5 Sepecification Bluetooth 2.1 wireless transmission protocol Transmission distance and range(10m, 360°) High SNR Bluetooth audio connection No wire,no transmitter,no software,no setup, it is easy and fast. 5: Automatic Switch-over between calls and musicHidden omni-directional Mircrophone 7: Low power indicaterAdjustable headband and foldedWorking duration:15h,charging duration:4hHeadset Spec.: frequency response:20-20KHz,SRN:85dB,working Voltage:3.7V,current:30mA speaker size:Φ40mmMicrophone Spec.:100Hz~10kHz&SRN≥55dB&Sensitivity:-42dB
FOB Price: US $52 - 80 / Piece Port: shenzhen Packaging & Delivery Packaging Detail: retail Delivery Detail: 2days Specifications 2013 High quality Syllable wireless bluetooth headphone DJ headset,solor headphone stereo headphone Quick DetailsBrand Name: OEM,loop Style: Headband,headphone Communication: Wireless,wireless Connectors: 3.5mm Use: MP3/MP4/DJ/audio player Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) model number: noise cancelling connector: 3.5mm quality: grade A cable: PVC/TPE/Fabric color: black/ white/red/purple/blue/green price: comepetitive price Packaging & DeliveryPackaging Detail:polybag / gift box / blister card/customized packagingDelivery Detail:1-2days after confirming the payment Specifications 1.custom color available2.high quality sound and headband3.embossed logo artwork4.5years manufacturing experience 2013 High quality Syllable wireless bluetooth headphone DJ headset,solor headphone stereo headphone 1.Stereo sounds,
Specifications 1Wireless Mobile Bluetooth Headset 2Effective distance10M 3Low power comsumption 4Good quality and low price top seller Wireless Bluetooth Handsfree Headset for Mobile Phone * Hands-free* Super mini size* Easy to use* Universal compatibility* Reversible ear hook Bluetooth Versionall mobileOperating Distance10mBatteryBuilt-in rechargeableCharging PlugA/C chargerDimensions36mm*16mm*20mmHeadset WeightAround 5gVOIPSupportMultipoint TechnologyNoMusic StreamingNoMulti-function Button On/OffYesStandard Bluetooth Features*YesStandby Time (hrs)100Supported ProfilesHeadset Talk Time (hrs)4In the Box1 headset1 AC charger1 Earhook1 User manualOther SpecificationsCompatible with computer/laptop and Bluetooth enabled mobile phone.Easy and ideal for all day usage --- Super mini-light weight design, you may even forget to take it off when you go to bed!Removable earhook is perfect for either left or rig
Specifications 1.Bluetooth headphone 2.Good quality 3.Best services 4.Negotiable MOQ 5.Weclome OEM and ODM HOT!2013 popular super A bluetooth headphone for pc ,phone , ipod 1.Gold-plated Plugs and flat cord2.Many colors can be optional3.suitable for ipod and works with iphone/ music phone hands-free calling4.lightweight soft on-ear cushioned headphones are perfect in any setting5.Competitive price with good quality.6. customers Logo available Detailed information : 1.MaterialABS/pvc/silicone/others2.driver unit15MM3.Sensitivity103+/-3dB at 1000Hz4.Impedence32 ohm / 300 ohm5.Frequency Range20--20,000Hz6.ColorOptional7.Rated Power60mW8.Maximum Power120mW9.Cable LengthApprx.120CM10.logofamous11.WeightApprx.1025g For more detailed info. , welcome to contact Ms. Carrie !O(∩_∩)O~~ s k y p e: dg201207
Specifications bluetooth headphones/wireless earbuds 1.MOQ: 50 2.Good quality 3.Fast delivery 4.Good price Features: * Wireless appreciating music and answering calls and joy in HD stereo tone quality. * Adopting NdFeB to make bass, high pitch, stereo and dynamic sound more excellent and real natural music.* You can feel the comfort even in several hours due to the adjustable head band & super soft ear pad.* The super-large ear pad can isolate the external noises effectively and bring you more perfect music experience* Complete operation, you can put the cell pone into the pocket or bag, and directly adjust the volume, song skipping and switching between calls and music from the headset. Parameter: * Working distance:10M* Charge time:≤3.5Hours* Music time:≥18Hours* Talk time:≥18Hours* Standby time:≥200Hours* Frequency range:2.4026GHz-2.480GHz* Correspond With V2.1+EDR* Support:HSP,HFP,A2DP,AVRCP* Transmitting power:Class2* Weight:About
Brand Name: HongKong HongFeng Model Number: 026 Style: Ear Hook Communication: Wireless Connectors: Other Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: gift box or OEM design Delivery Detail: 2-5 working days after payment Specifications 1.Wireless bluetooth headset 2.Transmission Distance: 10M 3.Noise reduction 4.Fashion&lightness Nature Sound Bluetooth Headset Features:1.The FM special random play function2.Storage and read function of flash disk3.Standby-time more than 100 hours4.Nice quanlity with acoustic fidelity5.Radiation Proof Anti-dropping Power Saving Specifications:1.Bluetooth Specifications: V2.1+EDR 2.Bluetooth Program:ISSC+Class23.Standby time: ≥ 100hours4.Talk time: 6hours5.Charging Time: 2-3 hour6.Standby Current: 0.7-1mA7.Batery Capacity: 48mA/h8.Wireless Frequency Range: 2.4G9.Transmission Power: 0 dbm11.Transmission
Specifications 1.talking time :3 h 2.standby time :120h 3.transmitting distance :10m 4.Bluetooth Version :v3.0 5.chip:CCMIC new smallest wireless bluetooth headset for samsung Specifications: Brand NameJPModelJP-BH99AInterface TypeUSBStyle in-ear/hear hookproduct size35*15*10mmProduct NW8gUnit Packing size167*83.5*40mmProduct GW54.4g Features and Advantages:1. Fashionable looking ,Ultra Slim and Ultra Smart Design . Removable type ear hook Products through bluetooth BQB certification2. small size and light weight make you to convenient to use 3. Three different sizes of ear plugs, wearing more comfortable 4. Technology digital signal processing - DPS. 5. Memory matching + echo elimination + voice dialing 6. support all of the mobile phone 7. the bluetooth version 3.0,8. signal sending interval extending to 0.5 seconds, chip workload greatly reduced