Bluetooth Headphone

Specifications 1.bluetooth headphone, 2.hand free, 3.3D LOGO, 4.sport-style  1) INTRODUCTIONWe, Ko-star, are committed to designing and producing high quality and stylish headphones.By more than 10 years manufactoring experience, we have organized a professional designer/engineer team for the whole production line, as well as effective and successful QC system from molding to assembling.Music is Sans Frontieres.  2) SPECIFICATION1.Bluetooth specification: V2.1+EDR 2.Bluetooth profiles: HSP, HFP, A2DP and AVRCP 3.Operating distance: 10 meters Class II 4.Rechargeable 430 mAH Li-polymer battery 5.Talk time: Up to 16 hours 6.Music playing time: Up to 14 hours 7.Charging time: About 3 hoursSpeaker Specifications Speaker: Φ30mm Impedance: 32Ω S.P.L.: 100±3dB @1kHz Rated Power: 20mW Frequency Response: 20Hz-20KHzMicrophone Microphone Unit: Φ6*2.7mm Directivity: S.P.L: -42±3dB 0dB=1V/PA @1KHz Frequency Response:100Hz-10KHz Operating Voltage: 1-10V    Brand NameKO-STARModel NumberBT-750AStyleHeadbandCommunicationWireLessConnectors3.5mmUsePortable Media PlayerFunctionNoise CancellingPlace of OriginGuangdong, China (Mainland)  3)Payment & Shipping Terms Minimum Order Quantity 3000 Piece/Pieces Port shenzhen Packaging Details blister box with insert card Delivery Time 5~6 weeks /1 week for smaplePayment Terms T/T Supply Ability100000 Piece/Pieces per Month   4)Certifications   Please contact us for pictures and specfication details.