OEM/ODM 2015 top selling stereo sports Bluetooth earphones, wireless headset, Bluetooth 4.1/Light Weight/Various Colors Available/Fashion style > >Mic. Specification >Microphone Unit: ￠4*1.5mm >Directivity: Omnidirectional >S.P.L: -42±2dB >Impedance: ≤2.2kΩ >Frequency Response: 10Hz-10,000Hz >Operating voltage: 2V > >Speaker Specification >Speaker diameter: ￠6mm >Impedance: 16Ω >S.P.L: 87±3dB S.P.Lat 1KHz >Rated power: 2-3mW >Aggragate capability: 40mW >Frequency Response: 20Hz-10,000Hz > >Others >Bluetooth Version: 4.1 >Operating distance: 10-15m >Li-battery capability: 160mAh >Playing time: 10 hours >Standy time:＞2250 hours >Charger Mode: Micro USB 5V/1A > >For more information, please search Shenzhen Aoni Electronic Industry Co., Ltd