Can connect audio/power amplifier/TV/earphone, and support simultaneous connection of two devicesHIFI high definition sound quality and high fidelity transmissionNFC Sensor Pairing Connection, built-in NFC sensor chip When the mobile phone is close to the sensing area, it will automatically connectBluetooth 5.3 powerful chip does not delay or jamWireless Music Streaming,Stereo stream music to non-Bluetooth headphones and speakersName: Bluetooth Receiver 5.3Bluetooth protocol: AVRCP, A2DPRange: 10mInterface: RCA interface/AUX audio interfaceBattery: 200mAhCharging time: 1.5 hoursSignal-to-noise ratio: 90dBOutput interface: 3.5mm/2RCACharging interface: Type-CColor: Blackmaterial: plasticPackage Contents:1 x audio receiver1 cord1 x AUX audio cable1 x RCA cable1 x Chinese and English manualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.