Awei Wireless Headphone A100Bl
1. Bluetooth version: 5.0\n2. Battery capacity: 400mAh\n3. Charging time 2.5h\n4. Play time: 7h turn on light 12h turn off the light\n5. Channel system: stereo 2.0\n6. Support protocol: A2DP, AVCTP, AVDTP, AVRCP, HFP, SPP, SMP, ATT, GAP, GATT, RFCOMM, SDP, L2CAP\n7. Charging voltage: DC 5V\n8. Frequency range: 2.402 ~ 2.480GHz\n9. Transmission distance: about 10 meters barrier-free\n10. Micro-SD card/built-in FM\n11. Diameter: 40mm X 2\n12. Sensitivity: 118 +/- 3DB