Bluetooth 5.4 HiFi MP3 Player MP4 Media FM Radio Audio Recorder Music Portable
1.77” Bluetooth 5.2 HiFi MP3 Player. 1.5” Bluetooth 5.4 HiFi MP3 Player. ●Using Bluetooth 5.2, you can connect Bluetooth headset, Bluetooth speaker and other audio devices, the connection is more stable and the sound quality is better.