B30 3.5mm Bluetooth 5.0 Audio Receiver 2 in 1 Low Latency RCA Wireless Adapter Car Handsfree Call

1. Type: Wireless Audio Receiver2. Version: 5.03. Protocol: A2DP, AVRCP and HFP, HSP4. Operating frequency band: 2.402GHz – 2.480GHz5. Receive sensitivity: -90dB at 0.1% BER6. Operating current: <25MA7. Built-in battery: 110mAh8. Charging time: about 1.5 hours9. Life time: about 5H10. Distance: <8M (barrier-free)11. Charging method: Micro USB 5V12. Output connection: 3.5mm interface