Brand Name: Ankaka Model Number: AEC-B30 Style: Ear Hook Communication: Wireless Connectors: Bluetooth Use: Mobile Phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) Frequency: 2.4 - 2.4835GHz Bluetooth Version: 2.0 Bluetooth Profiles: Handsfree, Headset Bluetooth Pairing Range: 10m Dimensions: 30 mm x 25 mm (Diameter x Height) Packaging & Delivery Packaging Detail: Neutral package Delivery Detail: 3-7 days Specifications Superior Wireless Bluetooth Headset Bluetooth v2.0 Range: 10m+ USB Rechargable Blingmax - Bluetooth Headset (7mm thin, USB Rechargable)Blingmax - Bluetooth Headset (7mm thin, USB Rechargable)How To Inquire About Wholesale Discount Prices of This ProductVisit: http://www.ankaka.com/blingmax-bluetooth-headset-7mm-thin-usb-rechargable_p46985.html Prices offer on www.ankaka.com website are final for small order quantity.Ankaka offers price-matching on all our products.When we are shown a website with the same item being sold for less, we will update ou
Brand Name: hotom Model Number: hotom007 Style: Headband Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Name: Bluetooth Stereo Headset Colour: White ,Red, black charging time: 2 hours horn diameter: 40 mm transmission range: more than 10 meters output power: Class II Packaging Details:: Stardard package Packaging & Delivery Packaging Detail: Stardard package Delivery Detail: 3-4days Specifications 1)Bluetooth4.0wireless headset. 2)Compatible with all Bluetooth A2DP enabled devicce 3)Working more than 24 hours in 30 mete fashion & colorful wireless floding bluetooth headphone bluetooth headset specifications 1) the battery 3.7 V / 500 mah lithium-ion polymer battery2 )calls (bluetooth) about 24 hours3 )music (bluetooth) about 24 hourS 4 )charging time: 2 hours5 )frequency response: 20-20 000 hz6 )horn:32 ohrn7) horn diameter:40 mm8 )bluetooth frequency: 2402 MHZ ~
Brand Name: XSound Model Number: AK-XsoundBTH Style: Ear Hook Communication: Wireless Connectors: 3.5mm Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Color: Black/Silver Packaging & Delivery Packaging Detail: Neutural Package Delivery Detail: Within 3 Days Specifications 1.Fashionable Noble Design 2.High Quality Stereo Music Sound Feeling 3.2012 The Newest Lastest Bluetooth Headphone Document No.:XSOUND-H1-010 Version:R1.0 Date:2012-5-15 PRODUCT SPECIFICATION FOR H1 1 General This document describes a Bluetooth stereo headphone H1. The unit consists of: 1) 1 Bluetooth headphone (Bluetooth chipset BC5 ROM based PCBA with Charge connector/ MFB/Volume up (next song)/Volume down (previous song)) 2)&n
Specifications 1,Just say "Answer", need not press any button to Answer call. Just say "answer" to answer a call without having to press any buttonPlay music, podcasts, webcasts and GPS navigation tips2-in-1 USB interface cable for the phone and the headset at the same time charging
Specifications 1,18 years experience in prototype and manufacture 2, Partners:SIEMENS,TOSHIBA etc 3, High quality and fast delivery Main Features:1 Micro USB Charing Socket2 In-ear Speaker3 With Volumn Keys4 Super Mini Style Item Name KAIAO BlueTooth headset PrototypingThe company's Advantages:Over 20 years experience in Design, Product development, Magnesium- Alloy & Aluminum-Alloy part and Precision part manufacturing.Highly skilled for manufacturing process.Strict quality Control System.Delivery in time and competitive price.Business Fields: Project Development(ODM&OEM project) for Industrial Design, ME and Hardware Design, Tooling process and Mass production.Magnesium- Alloy & Aluminum-Alloy part manufacturingReaction Injection Molding RIMMetal machining part manufacturingRapid PrototypingLow volume production by CNC, RTV, and Fast-mould etc.Preferred Formats: Pro/E, Solidworks, U
Specifications good quality, cheap, quick delivery time used for mobilephone&PS3 manufacturer offer Detailed Product Description1.Best selling mono wireless headset 2.Built-in rechargeable battery 3.Energy saving 4.Distinctly superior Features of Wireless headset: 1.Wireless headset with built-in rechargeable battery 2.Wireless headset,suitable for different bluetooth mobile phones 3.Wireless mono call center headset, low end and long talk time 4.Wireless headset with adjustable volume and 10 meters effective range 5.stylish mini and elegant appearance design 6.easy to wear without hook ,very comfortable 7.Redial the last call,clear sound,reject call,volume adjustable 8.Faster connecting ,convenient to listen to MP3 from cellphone 9.Talking time:up to 3H,Standby time:about 75H 10.CE,FCC,RoHS approval Product Specification: * Talk time: Up to 3 hours t
Brand Name: HZD or OEM Model Number: BT-200 Style: Headband Communication: Wireless Connectors: 3.5mm Use: all bluetooth device Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Feature: Bluetooth Support: all bluetooth device working time: 12hours Sensitivity: 112db+/-3db Frequency responce: 20-20kHz Bluetooth standard: bluetooth V2.1+EDR charging current: 110+/-10mA working distance: 10m Carrier frequency: 2402MHz-2480MHz Standard: CE,ROSH,FCC Packaging & Delivery Packaging Detail: Poly bag / Blister packing / Box packing / OEM packing Delivery Detail: 10 days after receiving the payment information Specifications 1,Bluetooth headphone 2,built in lithium battery 3,10m working distance 4,12hours working time 5,OEM brand Bluetooth headphone BT-200 good quality Product Features: 1,Support systems:audio equipments with bluetooth functions2,Bluetooth protocol standards:Bluetooth V2.1+EDR 3,Receiver range:10m / 360Frequency R
Specifications 1. bluetooth headset 2. red colour 3. wireless, used for mobile phone, MP3 etc. 4. in blister package. 5. good quality red colour wireless bluetooth headset, Operation range:Up to 10 metersWeight:about 14gramsReversible hook for either ear with smooth material for long holdCapacity:Up to 6 hours talk time and 140hours stand-by time.Bluetooth specification:compliant V1.2Profiles:Headset profile,Hands-free ProfileActivation of voice recognition on the mobile phoneVolume adjustmentPacking: Colour box package
Brand Name: Phonemason Model Number: PH.EP-120006 Style: Headband Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: box,blister,crystal Delivery Detail: 3-10days Specifications bluetooth headset 1.IN STOCK 2.Multi-function 3.Support OEM 4.Fast delivery bluetooth headset *Multipoint Functions*Bluetooth version: V2.1 + EDR*Transmission range: 10 meters*Bluetooth mode, hands-free headsetmode, music play mode.*Wireless frequency: 2.4 GHz*Chip: CSR*The charger: AV input 110 -240 VDC output 5 V*Listening time up to 5.5 hours*Talking time up to 6 hours*Standby time up to 110 hours
Specifications Ear-hook echo and noise cancellation bluetooth headset Dual-microphone CVC v5.0 achieves over 30dB dynamic noise suppression, products Description: Ear-hook echo and noise cancellation bluetooth headset KEY FEATURES:Dual-microphone CVC v5.0 achieves over 30dB dynamic noise suppression,highquality sound;echo and noise cancellation;Packet/bit error correction technology to improve audio quality due to airinterference;Operating range: 10M SPECIFICATION:Bluetooth Specification:v3.0+EDR class 2;Support:HFP V1.5 and HSP V1.1 RF Frequency Range:2.402-2.480GHZ, 2.4G ISM band;Radio Performance: Receive Sensitivity of -90dBm,TX Power Max 4dBm;Frequency Response: 20 Hz - 20 KHz,Very high Signal to Noise Ratio(SNR):95 Db,Total Harmonic Distortion(THD):0.1%;3 Button design : MFB,VOL+,VOL-;LED Indicator Status : Blue, Red;Battery:Recharge
Brand Name: Winnershine or OEM Model Number: UVH-001 Style: Headband,Overhead wear and wireless Communication: Wireless Connectors: 3.5mm Use: Bluetooth headphone Function: Bluetooth,Noise Cancelling,Headphone & ear warmer Place of Origin: Guangdong China (Mainland) Mane: bluetooth headphone Color: Black/red/whgrey/pantone code Accessories: Charging line Material: POM & Acrylic & Terylene Pacakge: Paper gift box hook & OPP bag Sample: Avaialble OEM order: Welcome MOQ: 500pcs Packaging & Delivery Packaging Detail: Gift box Delivery Detail: 15-20 days Specifications 1.bluetooth headphone 2.Listen to music wireless 3.Durable battery 4.Fashion and versatile design 5.Lastest bluetooth desig UVH001 knitting wireless,bluetooth headphone Bluetooth Earwarmer Headphone Features: After Bluetooth earmuff is paired to a mobile phone, it is possible to make and receive phone calls thanks to the microphone and the speaker placed respectively on the Bluetoot
Brand Name: USBONLINE Model Number: USWH0019 Style: Headband Communication: Wireless Connectors: USB Use: Portable Media Player Function: Bluetooth Place of Origin: Guangdong China (Mainland) Color: Grey Packaging & Delivery Packaging Detail: Gift box/ OEM Delivery Detail: 2 to 7 days when confirm the order Specifications Best wireless bluetooth headphones 1 SD card wireless music headphones 2 Two year warranty 3 Excellent experience Best wireless bluetooth headphones SD card wireless music headphonesFetures:1.Advance wireless music headsets provide portable,3D sound and high-quality of subwoofer enjoyment.2.No need to connect any cable and just simply insert the SD card,you can play your favorite music.
Specifications 1.hot sell headphone 2.high quality. 3.best price 4.best after-sale service. Delivery includes:headphonesRigid Toure CasesAnti-Microbial Clearning cloth1/8 to 1/4" adapter
Specifications bluetooth headphone, with nice data transit high quality stereo sound performance Hi-Fi headsetCSR multimedia hi-fi blutooth chipsetBluetooth version v2.1,comply with old versionapply to any mobile phone in compliance with 1.0.1.1.1.2 and 2.0 regulationGot call automatically Redial functionVolume control buttonPause functionProvide 16 digital DAC audio-out Interface Levels:3.3V—4.2V,lithium batteryBluetooth version v2.1,comply with old versionSB Protocols: USB v2.0Frequency: 2.4GHz ISM bandGFSK(Gaussian Frequency shift keying)Radiated power: ≤4dBm,Class2Effective distance: ≤10m,Class2Sensivity: ≤-95dBm at0.1% BERData transfer rate up to Asynchronous:1-3Mbps(Max)Security : Authnticaton and encryptionBluetooth protocols : HSP1.0,HFP1.5,A2DP1.2,AVRCP1.0working current:2-40mATemperature range: -20~+55C &nb
Specifications Bluetooth headset 1) Sales model : order or wholesale 2) Color:mix color 3) Size:4.3*20.5*13cm 4) Weight:0.083kg/pcs Bluetooth headset 1) Sales model : order or wholesale2) Color: as picture (mix color)3) Product size: 4.3*20.5*13cm 4) Product weight:0.083kg/pcs5) Material:ABS+ Electronic components 6) Function: Bluetooth headset 7) Packing:PVC box,48pcs/ctn8) Product condition: stock or order(we can produce for you according to your requirement)9)Payment: TT,Western union10) Please feel free to contact with us,if you have any questions. DescriptionTop quality; Competitive price; Fast shipping;Drop combined order shipping available;Best and Timely service; 100% satisfaction!1) We are supplier in Yiwu of china, You know that China’s work force are very famous,cheaper and quality is very rigorous,so lots of famous Brand Co., are choose china for a manufacture base,this is why China can have so many,these are not,j
Brand Name: x5tech Model Number: XH-008BT Style: Headband Communication: Wireless Connectors: USB Use: Portable Media Player Function: Bluetooth,Microphone Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: blister packing, 20pcs/CTN0.068CBM Delivery Detail: 25 days after deposit Specifications 1.Perfect design neckband wireless bluetooth headphone 2.good sound quality ,can answer the phone call. 3.with microphone Feather: 1.Fashional and simple design wireless bluetooth headphone2.with microphone ,can answer the phone call 3.Advanced Bluetooth technology 4.Easy to take and enjoy your music during sporting ,travelling ,walking ,driving ....5.Unique and Intelligent function let you will not miss any call when you enjoy your music Specification: Edition Bluetooth V2.1+EDR Frequency Coverange2.402GHz--2.480GHz ISM BandSensitivity-80dbmWireless transmitter StandardClass 2Channel79 Channels of 1MHz BWTransimt Rang
Brand Name: DENO Model Number: R6250 (115) Style: Ear Hook Communication: Wireless Connectors: Bluetooth Use: Mobile Phone Function: Bluetooth,Noise Cancelling,Microphone Place of Origin: Guangdong China (Mainland) BQB: YES FCC: YES CE: YES ROHS: YES Packaging & Delivery Packaging Detail: Gift Box Delivery Detail: 20 days Specifications 2013 Mobile Phone Mono Bluetooth Headset R6250(bluetooth headphones for cell phones) The Smallest Mono Bluetooth Wireless Headset R6250 for iphone and other smart phone Our Advantage:1.Hot and Popular Model2.Great and Very Competitive Price 3.The smallest bluetooth headset4.Stable and Good Quality5.Support multi-point connect Main Features: 1.Bluetooth headset with built-in rechargeable Li-battery2.Bluetooth headset , suitable for different bluetooth mobile phones3.Bluetooth mono call center headset, low end and long talk time4.Bluetooth headset with adjustable volume and 10 meters effective range5.Stylish m
Specifications Hi-Fi Stereo Bluetooth Headphone BluetoothV3.0+EDR 200Hours Standby Time Rechargeable Battery Neckband Design New Design Portable Hi-Fi Stereo Bluetooth Headphone BT-968 Product Features* Hi-Fi Stereo sound quality* Portable light weight neckband design, easy operating* Strong anti-interference ability,high fidelity* Suitable for any mobile phone or pc with bluetooth functions*Colorful appearance design Specifications Audio Frequency Response40Hz~18KHz Output Power25dBmS/N≥90dBSpeaker2xØ30mm Operating Voltage DC 3.7V Operating Curret 25mA Carrier Frequency 2.4GHz GFSK Hold Time 15 Hours Music Playing 12 Hours Protocol Standard Bluetooth V3.0+EDR Standby Time 200 Hours Above Battery3.7V/320mAh rechargeable Li-ion battery Charging Time 2~3.5 Hours Operating Distance≤10mPackageblister+paper card BT-968A BT-968B BT-968C Contact person:CindyMobile:+86-13927448174
Specifications 1.high quality with lower price 2.small speaker design 3.multiple function 4.easy operate button 5.for radiation protection Specification Bluetooth Version
Specifications 1.Stylish bluetooth headphone 2.Stereo excellenct sound 3.Cheap price 4.OEM/ODM order welcomed 5.High quality Fashional bluetooth headphone with UV painting shell Specifications: ItemsCDB-041 Bluetooth headphoneBluetooth VersionV. 2.1/3.0+EDRSupport ProfilesHSP, HFP, A2DP and AVRCPSpeaker DIM:30mmOperating range10 Meters(33fts) CLASS IISpeaker Impedance 32±15%Frequency Range:20~20KHzTalk timeUp to 11hoursMusic timeUp to 250 hoursCharging timeAbout 3.5hoursBatteryRechargeable 380mAH Li-polymer batteryOutput S.P.L:93±3db*20mw/30mmMIC. Dimension:4.5*2.2mmMIC.Sensitivity:-54dB±2dBMIC. Impedance:2.2Input Voltage:DC 5V BY MINI 5PIN USBDimension( mm)123.5*49.5*25mmCompatible support:Apple IPAD I II, I phone 3. 3GS,4,4S, PC/NOTEBOOK(need bluetooth dongle) Features:1.MFB: POWER ON/OFF, PAIRING, PLAY/PAUSE2. PREVIEW and next song control3.VOLUME UP and DOWN control4.PLASTIC and RUBBER materials5.Voice calls and music mode automatically s
Specifications 1 .Enjoy music cordlessly 2 .Build-in high quality headphone 3. Comfort earhook design 4. Fashion Stereo Bluetoon Specifications:1.Bluetooth function2.Cheapest portable bluetooth headphone3.Newest fashionable design4.Quick rechargeable battery Main Features:1.Bluetooth wireless/wired headphone2.The built-in microphone and call-forwarding function3.Remote control the function of PAUSE/PLAY4.Remote control last/next song5.Adding and connecting your bluethooth devices immediately6.Controlling answer calling and reject calling7.Controlling volume up and volume down8. Support with Laptop,PC, iPhone/Mobile phone as insert audio cable with the audio port .9.Waterproof:IP67 Products Functions:1.Colour:white, red, black, blue2.Type: Bluetooth wireless/ wired 3.Bluetooth version: Bluetooth v1.2 Class24.Chipset: BC6130 5.Support profiles: Headset, Hands free, AVRCP, A2DP6.Master control :CSR7.Transmission distance: 10 meters8.Listening to FM consu
Specifications 1.Support A2DP, AVRCP; 2.Smart connection; 3.Rechargeable battery system; 4..Built-in Mic. BLUETOOTH MP3 HEADPHONE E68 Function TF card support,bluetooth built-in, mp3, headphone, telephone, EQ Specification( bluetooth part)Bluetooth version: bluetooth V2.0.Transmitted power: Class 2(max 4 dBm)receive sensitivity: battery: rechargeable 460mAh Li-ion battery.power supply: DC5Vcontinuous talking time: over 15 hoursstandby time: about 240 hoursweight: 77gsize: 15*15*6.5mmoperation range: within 10 meters Specification(mp3 part)Audio format support: MP3/WMA/WAVExternal memory enlarge: TF card( Max 8G)Play time: continue about 10 hoursUSB Jack: USB 2.0Frequency response: 20Hz~20kHzOutput power: 15mW*15mWRecord sampling rate: 64Kbps/8KHzRecord format: WAV Hardware specification definitionSolution Transmit powerClass 2, Max4 dBmReception sensitivity-88dbm(typical)Working Band2.4G ISM Band,2
Specifications 1.Stylish skype Headphone 2.For computer & Mutimedia 3.Communication headset Stylish skype Headphone for computer & Mutimedia BTH-017 Key Specifications:
Brand Name: Bassen Model Number: RO-LY Style: Headband Communication: Wireless Connectors: Bluetooth Use: anti-radiation Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) material: plastic color: black,red,yellow,blue,pink feature: anti-radiation button: pick up/hang up connection: bluetooth packing: color box using distance: 10 m charging time: 1-2 hours usage: mobile phones,tabalet Certificates: CE,RHOS Packaging & Delivery Packaging Detail: gift box Delivery Detail: 5-7 working days Specifications bluetooth headphone Improve call comfort Volume control work with device with bluetooth function Using distance: 10 Bluetooth headphone with Base Product advantages: Available worldwide, long talking time. The Bluetooth technology cost no extra money to use it in the world, so the customers who don't know this point about the Bluetooth can use it without worries. After you get it, you just need to recharge for the product when
Specifications 1. high quality bluetooth headset earphone sam HM7000 2. high quality. tested fully before delivery 3. one year warranty high quality bluetooth headset earphone sam HM7000 Bluetooth Mode: StereoBluetooth Version: V2.1+EDR compatibleFrequency: 2.4GHZ--2.48GHZTransfer: Class 2Voltage: 3.6vElectronic currency: <25maTransfer distance: 10MCharging time: 1H-2HTalking Time: 4HStandby time: 100H
Brand Name: for samsung Model Number: hm1200 Style: Ear Hook Communication: Wireless Connectors: 1.5mm Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) color: black white Packaging & Delivery Packaging Detail: 2-3 working days Delivery Detail: Gift box packing Specifications Bluetooth Headset for Samsung Cell Phoe Bluetooth version V3.0+EDR Talking Time:3 Hours Hot Sell,High End Mold Feartures: Bluetooth Version V3.0/2.1+EDRExtremely good quality,superior clear voiceHandsfree,compatible with all Bluetooth Devices Such As PS3 & IPHONEHigh Capacity&Rechargeable Lion BatteryAutomatic cennecting functionEnergy saving function,200% longer talk timHandsfree,answer/reject call and call the last coming NO.Voice Dialing,Re-dialing functionRemote control music playback,pause,up and down selections Volume control key,volume up and down Technical Paramiter: Frequency range:2.4GHz-2.48GHzTransmission
Brand Name: Meidio Model Number: MA-960 Style: Headband Communication: Wireless Connectors: USB Use: Portable Media Player,SD,TF,FM Function: Bluetooth,Waterproof,Noise Cancelling,Waterproof, Noise Cancelling Place of Origin: Guangdong China (Mainland) Sensitivity: >90dB Mic frequency range: 20Hz-20KHz Other models available: MP3,WMA,WAV Company: TUV manufacturer Service: ODM,OEM Packaging & Delivery Packaging Detail: NW:7.8KGS GW:9.0KGS Quantity:40PCS/CTN mess:55.5*43.5*28CM Delivery Detail: 7-15 days Specifications SD/TF card headphones wireless with fm radio brand new factory price fast delivery odm oem service welcomed 2012 New fashion hot pink and black Bluetooth headphone wireless headset headphone Sensitivity:>90dB Mic frequency range:20Hz~20KHz Style: Headband Communication: Wireless Connectors: USB Use: SD,FT,FMFunction: Waterproof, Noise Cancelling other model available:MP3,WMA,WAV
Brand Name: HFL Model Number: HFL-DSC00143 Style: In-Ear Communication: Wired Connectors: other Use: earphone Function: Bluetooth,Silicone earphone plugs Place of Origin: Guangdong China (Mainland) Material: 100% food grade silicone Size: 12x13mm Layer: Double Layers Color: Different Colors Payment terms: T/T, L/C Payment methords: FOB shenzhen Certificate: ISO9001,SGS MOQ: 10000pcs Shipment: as customized Packaging & Delivery Packaging Detail: Inner packing:2pcs packed in polybag,1000pcs packed in polybag outer packing:10 polybags/ctn measurement:335*290*265mm We also can make the packing by clients' request . Delivery Detail: 15-25days Specifications Silicone earplugs for bluetooth headset 1,Material: silicone 2,MOQ:10000pcs 3,Shipment: as customzied 4,Color: as cutomized silicone earplugs for bluetooth headset:1.Made of 100% grade silicone with FDA and SGS approval2.Bowl shape to fit the ear canal comfortably for decreasing noise 3.Non-toxic,smooth, dirt resistant4.More c
Brand Name: Gucee Model Number: G268 Pro Style: Headband Communication: Wireless Connectors: USB Use: Computer Function: Bluetooth,Waterproof,Noise Cancelling Place of Origin: Hunan China (Mainland) Packaging & Delivery Packaging Detail: Blister, Graphic carton Delivery Detail: 8-15 days after order confirmed Specifications With Calling Wireless Bluetooth Headphone 1. Hidden microphone design 2. 2.4GHz Wireless transmission frequency With Calling Wireless Bluetooth Headphone Features: 1.Hidden microphone design, in the use of the process does not occupy space. 2. Increase the volume: in the online state to the "+" side to press the volume button to increase a certain volume. 3. Volume reduction: a certain volume in the online state to the "-" side to press the volume button decreases. 4. Pause: Tap the power button to pause at the boot mode, tap again to continue playback. 5.2.4GHz Wireless transmission frequency to meet the requirements of the Eur
Brand Name: Tonsion Model Number: BT30-C Style: Headband Communication: Wireless Connectors: USB Use: Portable Media Player Function: Bluetooth,Bluetooth,Waterproof,Noise Cancelling Place of Origin: Guangdong China (Mainland) Type: Bluetooth For use: Mobile notebook ipad Color: black/white Connector: Bluetooth Compatibility: Mobile Phone, PC, MP3 player, etc. Packaging & Delivery Packaging Detail: blister package or color box Delivery Detail: delivery in 30 to 35 days around after got the deposit in advanc Specifications Bluetooth Headphone With TF Slot 1.new model 2.turnable 180 degree cover 3.stereo headset 4.welcome OEM brand Bluetooth headphone With TF Slot For Notebook Mobile Product Specifications: Wireless frequency:2.404-2.479GHz, ISM BAND Operating Voltage and current:30mA 3.7V.( 3.7v 500mA lithium ion battery) Speaker Frequency Response:20Hz-20KHzMicrophone Frequency Response:100Hz-8KHz SNR of speaker:>70dBSNR of microphone:>=55dBD