Headset/headphone Wireless Awei A825bl Bluetooth4.1

"1. Business unilateral bluetooth headset2. Phone and music automatic conversion, up/down selection, play/pause3. Stereo high-quality listening to music, shocking bass effect, clear calls4. Support one-to-two function, call rejection function5. Support operation voice (Chinese/English) prompt function5. Large battery capacity, low power consumption, long battery life6. Support IOS system power display""Bluetooth version CSR4.1Channel system MonoBattery capacity 40mAhDrive unit 9mmProduct weight 6.7gThe gross weight of a single product with packaging is 141gCharging time 2 hoursTalk time 4 hours3 hours of musicProduct size 48*16.5*6.0mmSupport Protocol HSP/HFP/A2DP/CCVPInput charging standard DC 5V 300-500MABluetooth operating frequency 2.400GH-z-2.480GH-zBest call distance <1MMaximum transmission distance 10MVoice prompt supportMultipoint connection supportWearing methodManual Chinese and EnglishIncluded accessories USB charging cable, manual"