Yqwdhpnf Bluetooth MP3 WAV Decoder Board Amplifier Handsfree Car Audio Microphone USB TF Radio Mp3 Player Speaker

2. Support calls (long the pause button to answer calls) 4. Support power-off memory 1. Bluetooth version 5.0 3. Support recording. Recording only supports operation in TF mode or USB mode.(Long the MODE button to recording, long the MODE button again to cancel recording and play the recording file; exit recording mode by long the pause button to exit. When recording, a storage device needs to be connected, such as a USB flash drive or TF card;) 5. The power supply voltage supports DC 3.7V-5V and the current is around 1A.