B55 Lavalier 5.1 Bluetooth Receiver Aux Wireless Audio Adapter Car Bluetooth Hands Free Call

1. Bluetooth: V5.12. Support protocol: A2DP AVRCP HFP HSP3. The operating frequency band is 2.402ghz-2.480ghz4. Power level: 2 (class II)5. Receiving sensitivity: - 90dB at 0.1% BER6. Working current normal mode: about 12mA low delay mode: about 12mA7. Built in battery: 110mah8. Charging current: about 100mA9. Charging time: about 2 hours10. Low delay mode: LL key can be cycled. In LL mode the indicator light is green.11. Endurance: > 8h12. Bluetooth distance: > 10m (open space)13. Charging mode: micro USB 5V14. Output connection mode: 3.5mm stereo interface15. Compatible with Android IOS mobile phone and pad and other audio devices with aux input function