These are 2 types to choose :
1) With FM : Support FM Radio function
2) No FM : No Support FM Radio function
With FM
Feature:
Support MP3/WMA/WAV/FLAC / APE
Support: MP3 / USB (U disk) / TF / LINE IN / FM / BLUETOOTH
Power Supply: 5V 12V
Three buttons: PREV/ PLAY / NEXT;
1. PREV button (previous song/volume reduction): In the MP3 state, the PREV short press is the previous song, and the long press is the volume reduction;
2, PLAY button (play / pause): PLAY short press for play / pause in MP3 state; long press is USB / TF card / AUX / Bluetooth mode test tone switch.
3, NEXT button (next song / volume increase): NEXT short press for the next song in MP3 state, long press for the volume to increase;
4. This model has the function of automatic conversion device. When there is no device, the default is in the Bluetooth state. If there is a device, the device is interpreted first.
① TF: Connect TF memory card (up to 32GB)
② USB: Connect USB flash drive (up to 32GB)
③ LED indicator
④ PREV/VOL-: Short press is to select the previous song; long press is to decrease the volume
⑤ PLAY/PAUSE: Short press is the switch between pause and play;Long press is the switch of USB / TF / FM / AUX / BLUETOOTH sound, in the radio FM state, the short pause play button is automatically searched;
⑥ NEXT/VOL+: Short press is to select the next song; long press is to increase the volume;
No FM