Specifications 1.Play music from bluetooth devices 2.Stereo 3.Portable external design with good quality 4.logo printing is available. Cool wireless Bluetooth headphone Bluetooth Version:V2.1, V2.0 ,V1.2 and standard V1.1Support Bluetooth profilesA2DP , AVRCP ,Headset Profile , Handsfree ProfileApplicable modelsCompatible with all smart mobile phone and tabletsEffective distance10 meter diameterFrequency2402MHz to 2480 MHz ISM BandMic Sensitivity45 dB (0dB=1V/pa ,1KHz)Talk time ( Fully charged )about 8 hoursStand by time( Fully charged )about 600 hoursOperating Voltage3.3V-4.2VCharging Voltage5VBattery Capacity500mACharging timeless than 4 hoursMatching method1. press power button lightly ,then the bluetooth mold of headset will open automatically 2. use your mobile phone to search the bluetooth connection "BH450B" 3. follow the tips and connect .if connected , you can use it nowAccessoriesone 3.5mm standard audio cable , one USB charege cab
Specifications bluetooth headphones with MP3 player 1.Factory supplier 2.CE & ROHS & BT certificate 3. unique design 4, excellent sound Top1 hot selling stereo bluetooth headphone in 2013 Fashion headphones technical Parameter: ♥ Driver unit: 2 ×30mm speaker♥ Frequency response: 20-20KHz♥ Operating Voltage:3.7V♥ Impedance (+/- 10%): 32ohms♥ Sensitivity (+/- 5dB at 1KHz): 115dB♥ Output current: 100mA♥ Operating Current:≤30mA♥ Plug: 3.5mm stereo♥ Cable:2.0M+/-10%♥ TF Card Supprt:128MB-16GB♥ Playback time: 8hours♥ Charging time: 2-3hours Detailed pictures(Same design, different print) Fashion headphones specification: Main feature♥ Earmuff used
Specifications 1. Headphone; 2. High Quality; 3. Dropship, OEM; 4. New Arrival; 5. Factory Price. High Quality YP-701 Stereo Bluetooth Headphone Wireless Headphone with MIC Support MP3 FM TF Card FeaturesVersion:bluetooth2.1+EDR;Distance:10M;Range of frequency:2.4-2.4835GHz ISM band;Sensitivity:-85dB.PC interface:USB 2.0Music format:MPA3/WMATF card support:128M-32GBFM frequency response:87.5-108MHzRechargeable lithium battery:350mAh.SpecificationsType:stereo headphone with MICSpeaker:40mmSensitivity:115dB S.P.L at 1KHZImpedance:32ΩFrequency response:20HZ-20KHZRated Power:40mWPower capacity:100mWCable length:1.5mMicrophone unit:4.5mm*2mm -58dB+-3dBPlug type:3.5mm.package include: headphone, cable, user manual, Europe Plug Adapter
Brand Name: Sunvision Model Number: SVS-HP-WLB10 Style: Headband Communication: Wireless Connectors: usb, mobile phone, computer Use: Other Function: Bluetooth,Microphone Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: colorful box package(OEM package) Delivery Detail: sample 3-7days, leadtime is depending on your order quantity. Specifications Hottest Foldable High Quality stereo bluetooth headphone 2.4G Hottest Foldable High Quality stereo bluetooth headphone 2.4G Specification: System:VHF/RFModulation:FM Mode:MonoOperation distance>30meters(360 degree)Signal-to-Noise Radio>50dbDistortion<2%THDSpeaker:27mm mylarFrequency Response:20-20000HzTransmission Frequency:86MHz ±0.5MHzReceiving Frequency:84-108MHz(±0.5MHz)Power Supply Headphone:3V(2*1.5V AAA batteries)Transmitter:3V(2*1.5V AAA batteries) Features:excellent sound quality volume control with microphone mute bottonlogo printing(OEM) is av
Specifications 1.Wireless waterproof bluetooth headphones 2.A B channel wireless headphone 3.Volume Control 4.Adjustable in size Wireless waterproof bluetooth headphones WL-2008-55 Car IR Stereo TV headphone Infrared Headset SpecificationIn car wireless headphoneChannel:DualMode: stereoS/N ratio: ≥60dBDistortion: <1%Frequency response: 20 - 20,000HzImpedance:32 OhmsSensitivity: -88dBm±3dBChannel:DualCarrier frequency: a) A channel: 2.8MHz for right channel; 2.3MHz for left channelb) B channel: 3.8MHz for right channel; 3.2MHz for left channelVolume ControlChannel Switch5M Ultra Long RangeFrequenc
Specifications 1.charming stereo wireless headset 2.CE & ROHS 3.Fast delivery 4.Bluetooth Program:ISSC+Class2 5. bluetooth headphone charming stereo wireless headset, bluetooth headphone Product Discription: Bluetooth Core: V2.1+EDR Bluetooth Program:ISSC+Class2Standby time: ≥ 100hoursTalk time: 6hoursCharging Time: 2-3 hour Standby Current: 0.7-1mABatery Capacity: 48mA/hWireless Frequency Range: 2.4GTransmission Power: 0 dbmTransmission Distance: 10MEnvironment Temperature: -20/+60 °COperating Voltage:3.7V More tips: Bluetooth is a radio technology developed to deliver short-range wireless mobility. It eliminates the physical wires between the high technology devices such as mobile phones.Most advanced Mini Bluetooth Headset with length 29.4mm & weight 6.8g only. Up to 5.5hrs talk time & 10m range allows you talk anytime freely.Bluetooth Headset works up to 15m allows you talking everywhere. All phone calls are connected wireles
Specifications Bluetooth Headphone Calling Time:4 hoursHolding Time:120 hoursOutside Size: 36*36*10mmWorking Area:3-10MetersWeight: 15gBattery: polymer Lithium cellSupporting Bluetooth Agreement V2.0Color: Black, silver
Brand Name: xinqite Model Number: F233 Style: In-Ear Communication: Wireless Use: Mobile Phone Function: Bluetooth Place of Origin: Zhejiang China (Mainland) Packaging & Delivery Packaging Detail: Carton Delivery Detail: According to your order Specifications 1.Material:ABS+electronic elements 2.Size:2.5*1.5cm 3.Packing:Color+PVC Best motorcycle bluetooth headset Material:ABS+electronicSize:2.5*1.5cmWeight:59g Packing:color+PVCPacking:14*9*3.5cmPacking quantity:50 pcs per ctn Equipped with power charger and bluetooth headset hang
Specifications Bluetooth Headphone For PS3 1:High Capacity Lion Battery 2:Energy saving,6H Talk Time 3:Support AVRCP 4:Bluetooth 2.1+EDR Bluetooth Headphone For PS3 Video Game,Computer and Mobile Phone Feartures: CE,ROHS,FCC and BQB approvalBluetooth Version 2.1+EDRSupports AVRCP, HSP and HFPNoise Cancelling Function Bluetooth HeadphoneExtremely good quality,superior clear voiceErgonomic and Fashion designRemovable ear-hook fits either earBluetooth Handsfree Headset,compatible with most Bluetooth DevicesHigh Capacity&Rechargeable Lion BatteryExtremely Light:Only 7gAutomatic cennecting functionEnergy saving function,200% longer talk timHandsfree,answer/reject call and call the last coming NO.Voice Dialing,Re-dialing functionTechnical Paramiter: Frequency range:2.4GHz-2.48GHzTransmission power:class2Transmission distance:10MOperating voltage:3.6VOperating current:≤35mAStandby current:≤2mACharger power:Input 100~240V AC,Output 5V DCWorking temperature:-20&d
Brand Name: OEM Model Number: HW-MB-008 Style: Headband Communication: Wireless Connectors: 3.5mm Use: Mobile Phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: starnd packing box Delivery Detail: 3-5 working Specifications 1.High quality bluetooth headphones 2.3.5mm bluetooth headphones. 3.Bluetooth phones MOQ : 50PCS. Bulk bluetooth Headphone Brief description: 1. High quality bluetooth headphone jewelry.2. New stylish bluetooth headphone jewelry.3. Flat cable bluetooth headphone jewelry.4. Simple and beautiful design,original and lead fashion earphone5. Various color to match stylist music player earphone Bulk bluetooth Headphone features: It is available to built-in microphone for hands-free calls, up to you! Advanced sound quality Plastic earphone with flat line Bulk bluetooth Headphone Parameters: Products categoryflat cable earphoneItemHW-MBDriver Unit10 mm d
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
Brand Name: OEM&GO-ON Model Number: GB-100 Style: Headband Communication: Wireless Connectors: 3.5mm Use: mobile,tablets, Function: Bluetooth,Noise Cancelling,Microphone Place of Origin: Guangdong China (Mainland) Technology: Bluetooth V2.1+EDR Color: Black Effective range: Up to 15 meters(360°) Signal-to-noise ratio: 90dBr@1KHz Mode: Stereo Frequency response: 20Hz~20KHz Charging time: 2 hours Charge Voltage: 5V Operating time: More than 15 hours Power supply: Rechargeable Lithium-Polymer battery(500mAh) Packaging & Delivery Packaging Detail: Blacking carrying case + color box 1pc per color box,20pcs per carton box Delivery Detail: 30 days after order comfirmed Specifications Crystal sound bluetooth headset 1,Foldable design 2,Lithium-polymer battery 3,Built-in buttons 4,CE FCC RoHs certificate Crystal sound stereo wireless Bluetooth headphone with big earcup design The GB-100 is Bluetooth stereo headsets with rechargeable lithium-polymer battery. Built-in
Specifications 1.stereo bluetooth headphones 2.good sound quality 3.Rechargeble battery 4.CE,FCC,RoHS 5.one year warranty 2012 Fashionable and modern stereo bluetooth headphones Description: -USB wireless transmitter,universal compatible to PC Windows 2000/XP/Vista/7.0 -Easy installation, plug and play, pairing automatically -High-quality, uncompressed stereo audio, excellent for PC games, music & movies applications,can be used with a mobile-phone or play-station or a hifi-system at home to listen to music.-Opional Adapters for TV/IPod/MP3 and other audio applications -External microphne, free chat styles for PC common calling applications such as SKYPE/Yahoo!...ect. -Volume,play,pause controls -Stylish desigh DIY decorative patterns -Rechargable Li-ion Polymer battery built-in -Wireless Connection Distance: up to 10 m (33 feet) -Working time: up to 9 hours -Packing: Clamshell Blister or Giftbox
Brand Name: OEM Model Number: R525 Style: In-Ear Communication: Wireless Connectors: Mic 5Pin Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Chipset: CSR V3.0 Frequency: 2.4GHz Range: 10M Talking Time: 4H about Packaging & Delivery Packaging Detail: paper color box/Blister packing/wooden box/Crystal box Delivery Detail: 10 day Specifications bluetooth headphones 1.Delicate mono&stereo bluetooth headset 2.Newest easy-to-use blueto bluetooth headphones Features of Bluetooth Headphone: 1.Bluetooth headphone with built-in rechargeable battery2.Bluetooth headphone, suitable for different bluetooth mobile phones3.Bluetooth mono call center headphone, low end and long talk time4.Bluetooth headphone with adjustable volume and 10 meters effective range5.Stylish mini and elegant appearance design6.Easy to wear without hook ,very comfortable 7.Redial the last call, clear sound, reject call, volum
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 Mini Bluetooth Headphone SX-905 1) High Quality 2) Nice Design 3) Fast Shipment 4) OEM Mini Bluetooth Headphone SX-905 Unit Dimensions: 14.5/12.5/2.5cm weight: 130g Bluetooth Version: V1.2/V2.0 Charge Time: about 3hours Talk Time: 12hours Transmission Distance: Up yo 10M Package: 1xSX-905,1xcharger,1xUser manual
Brand Name: MTK/OEM Model Number: BT-210 Style: Headband Communication: Wireless,Bluetooth Connectors: bluetooth,Bluetooth 2.0 Use: Mobile Phone Function: Bluetooth,Waterproof,Microphone,For mobil or tablet pc Place of Origin: GUA,China Mainland China (Mainland) Application: Tablet PC/Mobil Color: Blue,black,White,Red Frequency:: 2.402 to 2.480GHz Battery: recharge Li-polymer 180MAH Packaging & Delivery Packaging Detail: bliseter package 1 PC/gift box CTN size: 56*41*49cm 100PCS/CTN N.W.: 12 kgs G.W.: 13 kgs Delivery Detail: 15-25 days Specifications stereo wireless bluetooth headphone Elegant Fashion Design High Acoustic Fidelity CE/RoHS wireless bluetooth headphone stereo wireless bluetooth headphoneElegant Fashion Design High Acoustic Fidelity CE/RoHSwireless bluetooth headphone Stereo Bluetooth Headphone,wireless bluetooth headphone Product Description1. Bluetooth headphone 2. 10m 360 degree range with no cords 3. Folding wireless headphone 4. Hidden omn
Specifications For Sony PS3 wireless ear hook bluetooth headset For Sony PS3 wireless ear hook bluetooth headsetFeatures: 1). Either the ear hook or the ear pulg. 2). Support headset,handfree profile 3) .Redial the last call ,Reject call. 4). Volume adjustable. 5). LED indicates connection. 6). Faster connecting, clear sound, anti-interference Specification: 1) BT protocol: version 2.0 2) Frequency: 2.4 GHz 3) BT range: 10meters. 4) Net weight: 14g 5) Power supply:DC5.1V/120Ma 6) Working volt: 3.7V 7) Battery: rechargeable Li-Ion battery 8) Talking time:up to 5.5 hours 9) Standby time: up to 120 hours 10) Charging time: about 2 hours. Accessory: 1).Charger(optional). 2).USB Charging line. 3).User guide. 4).Ear hook.
Brand Name: OEM Model Number: B01 Style: In-Ear Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth,Noise Cancelling,Microphone Place of Origin: Guangdong China (Mainland) Headset version: V3.0+EDR Support profiles: Headset,Hand-free, A2DP Operation Range: 10meters Battery: Rechargeable lithium Color: Black and White OEM: Available Packaging & Delivery Packaging Detail: 1.paper with color box packing 2.packing according to customer's requirement Delivery Detail: 1-3 days for sample order, 3-10 days for bulk order Specifications Stereo bluetooth headset for mobile phone 1. CSR chip 2. connect 2 phones 1 time 3. play music 4. for iphone,samsung etc. Stereo bluetooth headset for mobile phone Specificatio
Brand Name: ESORUN Model Number: OA04 Style: Headband Communication: Wireless Connectors: USB Use: Portable Media Player Function: Bluetooth Place of Origin: Guangdong China (Mainland) Ver.: Bluetooth V3.0+EDR Bluetooth Profiles: HSP,HFP,A2DPK,AVRCP Effective Range: 10Meters Music Time: 10Hours Talk Time: 11Hours Standby Time: Up to 250Hours Input: DC:5V/180mAh Charge Time: 3Hour Dimensions: 14.5*10*6cm Packaging & Delivery Packaging Detail: GIFT BOX Delivery Detail: 7-15DAYS Specifications Stereo bluetooth headset 1.Frequency:2.4GHz ISM band 2.Built-in 360 degree Omni direction microphone 3.OEM & ODM High quality Bluetooth 2ch Stereo Audio Headset stereo bluetooth headset SpecificationsBluetooth versionVER3.0+EDRBluetooth transmission distance33 FT/10M metersSupport ProfileHSP,HFP,A2DPK,AVRCPFrequency Response20 to 20kHzSignal noise ratio≥85d BSpeaker impedance4 ΩRechargeable battery5V/180mAhChargeUSB portCharging time /Playing timeabout 2 hours
Specifications Mono headset bluetooth headphones CD-615 factory price small and exquisite Mono headset Mono headset bluetooth headphones CD-615 It is a lightweight and comfortable stereo headset with a unique design and fashionable style. It has full metal body construction and its Bluetooth ringtone answering function allows headset to ring for incoming calls. You can make a direct phone call from your headset to most recent call by its recent call re-dial function. Moreover you can just push send button for a second to hold incoming calls, push it again to get back. When you listening to music, it will let you know your incoming calls by strong vibrating (as your cell phone's) from one side. Provides up to 5 hours talk time or 200 hours standby Specification: Mono headset Bluetooth version: V2.1+EDR Bluetooth model: Hands free/ Headset/ AV/ AV PCR profile Radio frequency: 2.4GHz  
Specifications 2013 new bluetooth headphone 1.One key to answer the phone 2.with battery 3.10m transmission distance 2013 new bluetooth headphone Specifications Low power comsumption;Receiving/hanging up/rejecting phonecall/voice dialing/redialing. bluetooth headphone Features&PricesVersionBluetooth V3.0+EDRTalking time3-4HCharging Voltage5VStandby time≥100HCharging time2-3HEffective distance10MMachine size14.5*8*31 mmQuantityUnit PriceMachine weight5.2g50pcsContact usPacking size102*131*47 mm1KAvailable colorBlack3KComplete set weight76.6g5KProduct featuresLow power comsumption;Receiving/hanging up/rejecting phonecall/voice dialing/redialingOriginal imported ISSC chip
Specifications Bluetooth 2.1 wireless transmission protocol High SNR Bluetooth audio connection Switch-over between calls and music Description: Bluetooth headset 1: Bluetooth 2.1 wireless transmission protocol &nbs
Brand Name: DGS Model Number: EBE29 Style: Ear Hook Communication: Wireless Connectors: USB Use: For PS3 Online Game Function: Bluetooth Place of Origin: Guangdong China (Mainland) Powered By: Mini USB Cable Size: 10.5(L) x 5.8(W)cm Weight: 15g Warranty: 3 Months Conditon: 100% brand new Carrier Selection: DHL/ TNT/ FEDEX/ UPS/ EMS/ HKPOST Welcome: Wholesale, Drop ship. Trade Manage No.: hk1000537965 Packaging & Delivery Packaging Detail: Retail Packing Optional Delivery Detail: Around 3-5 Business Days Specifications Wireless Bluetooth Headset For PS3 Game 1.20-degree variable mic arm 2.Provides perfect sound quality 3.Volume adjustable New Wireless Earpiece Bluetooth Headset For PS3 Online Game Product Specifications: Color: BlackPowered By: Mini USB CableSize: 10.5(L) x 5.8(W)cmWeight: 15gCompatible For: PS3A must item for PS3 game usersSmall design for chatting with people onlineBlocks the external noise keep your conversation clearProvides perfect sound qual
Brand Name: OEM Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: according to your need Delivery Detail: 1~3 days Specifications bluetooth earphone,bluetooth headset,bluetooth headphone It's our best-selling bluetooth headset currently bluetooth earphone,bluetooth headset,bluetooth headphone1)Version 2.0, CSR chipset2)Up to 8 hours talk time and 150 hours standby 3)Operating distance: 10 meters (class 2)4)Charging time: Within 4 hours5)1-touch control to answer/end calls6)Enchanced audio performance7)3-way call conference, join 2 separate calls into conference with headset buttons
Specifications 1.Wireless Bluetooth Headphones 2.Color:Pink,white,red,blue,black,purple 3.stereo headsets 4.high performance New Wireless Bluetooth Headphones from china factory Specification 1.super bass headphones with mic2.Color:Pink,white,red,blue,black,purple3.stereo headsets 4.high performance New Wireless Bluetooth Headphones from china factory 1.Melodic sounds, clearly, heavy bass2.Special materials, very comfortable 3.Colorful, most fashionable and comfortable even listening for a long time.4.Use 3.5mm connector5.Can be used for PC,MP3,MP4 and other portable multimedia6.Noise canceling ,The unique design of the Studio headphones has a powerful noise canceling, that you can enjoy music no matter where you are, even in a noisy crowd.7.Our products are with Rohs. Detailed parametersProduct Name New Wireless Bluetooth Headphones from china factory Quality Warranty3 months.S
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
Brand Name: OEM Model Number: HM7000 Style: In-Ear Communication: Wireless Use: Mobile Phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: Orginal Color Package Delivery Detail: Within 24 hours after payment confirmed Specifications Wireless Bluetooth Headset HM7000 Black Earphone Headphone for Universal Samsung Mobile phone Cheap Wireless Bluetooth Headset HM3500 Black/White Earphone Headphone for Universal Samsung Mobile phone Feature: (stereo headphone )Brand new, high qualityHigh capacity Li-ion battery, 200% longer talk time than normal Bluetooth headsetBluetooth V2.1, compatible with any Bluetooth enabled mobile phones, such as iPhone, Sumsang, HTC, LG, Moto and NokiaThis Mono Bluetooth,not support music playCan connect two cellphone on the same timeColour:black SpecificationModel : HM7000Bluetooth Profile : Headset profile (HSP), Handsfree profile (HFP), A2DP, audio div
Brand Name: OEM Model Number: BTH03 Style: Headband Communication: Wireless Connectors: 3.5mm Use: Portable Media Player Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) colour: black, red, speaker: bluetooth speaker battery: built-in rechargeable battery RF range: 30feets output: 3W Packaging & Delivery Packaging Detail: 12pcs/carton Carton size: 43*29*49cm Net Weight: 5.6 KGS Gross Weight: 6.6 KGS MEAS:37.5*26.5*48CM Delivery Detail: 10-25 days Specifications bluetooth headset for Ipad,iphone,Ipod 1.Bluetooth+MP3+calls 2.Super comfortable sponge cover 3.Foldable ear hook Features:Works with most Bluetooth-enabled device Aux-in port for connecting with other music devicesCall pick up/hang upVolume controlRedial last callMedia control: pause, play and Music TrackBuilt in Li-ion polymer rechargeable battery 
Brand Name: OEM Model Number: BTK-28 Style: Headband Communication: Wireless Connectors: V4.0 Use: Portable Media Player Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Color: Black Version: V4.0 Bluetooth range: 10meters Talking time: up to 20 hours Standby time: up to 800hours Charging Time: 3-hours The unit size: 174*40.7*159.85mm Weight: 162g Operating Temperature: -10-----45 Storage Temperature: -20-----60 Packaging & Delivery Packaging Detail: gife color box packing and customer's design welcomed Delivery Detail: 20-25 days Specifications HIFI Bluetooth Headphone with built-in speaker 1.Bluetooth 4.0 2.Support A2DP/AVRCP/HFP/HSP 3.OEM is OK 4.High sound quality Model No.: BTK-28 Super high quality HIFI Bluetooth Headphone with built-in speaker Headset Overview: Specifications: 1.Bluetooth protocol standards:Bluetooth V4.02. Support Bluetooth profiles: HFP A2DP AVRCP 3.Bluetooth range: