AWEI A835BL Wireless bluetooth Earphone Single Earbud with Charging Box with Mic

Features: 1. Car business Bluetooth headset. 2. Call and music can be automatically switched, select the next or precious songs, play / pause. 3. Stereo and high-quality music, shock bass effect, clear and high quality call. 4. Support to connect two phones simultaneously, call rejection function, operating voice ( Chinese / English ) prompt function. 5. Support power display in IOS system. Large battery capacity, low power consumption, long endurance Main Parameters: 1. Bluetooth version: CSR4.1 2. Sound channel system: Single track 3. Battery capacity: 50mAh 4. Drive unit: 10mm 5. Packaging size: about 180 * 95 * 30 mm / 7.09 * 3.74 * 1.18 in 6. Product weight: about 50g 7. Packing weight: about 115g 8. Product color: Black, rose gold 9. Charging time: about 1 - 2h 10. Call duration: about 4h 11. Music duration: about 4h 12. Support agreement: HSP / HFP / A2DP 13. Input charging standard: DC5V 300 - 500MA 14. Bluetooth operating frequency: 2.4GHz-2.48GHz 15. Best call distance: