1. Support stereo BT speaker function, mobile phones and other devices can send music to speakers (A2DP) via BT;
2. Support the speaker terminal to control the up and down music through the BT control mobile phone and other devices, adjust the volume;
3. BT is based on CLASS 2 power level, adopts Bluetooth 4.2, compatible with BT 3.0 and below, and the transmission speed can reach 3Mbit/s.
4. Supports playing music on SD/MMC Card and U disk. The music formats are: MP3, WMA, APE, FLAC, WAV (excluding license);
5. Support FM, the frequency band is: 87MHZ~108MHZ;
6. Support AUX input, external audio source can access the speaker through AUX and adjust the volume on the speaker;
7. Support speaker status broadcast, can play various speaker status and modify the broadcast language according to user needs;
8. Support function switching hotkey (one button in Card, u disk, AUXIN, FM, BT playback) (MODE button on the remote control is the function switch button);
9. Support firmware encryption;
10. Support USB/SD upgrade
11.FAT16, FAT32, ExFAT/Fat64 file system support;
12. Support directory level: 8 level subdirectories;
13. Number of supported files: The number of files is not limited in the single directory, and the total number of music files is less than 9999;
14. Support SD/MMC/SDHC;
15. Support USB2.0, fully compatible with USB1.1;
16.32 level sound (the volume level can be matched)
17. Support background BT, play card/U disk music and FM in case of BT connection;
18. Support Spp remote control, mobile phone to install APK or APP can support the remote control function of the speaker.
19. DC (DC) input for 9V to 12V power supplies
20. Higher security: anti-power reverse design, so that the power supply will not burn the product
21. Support BT call function
22. LED digital tube indicates working status and playing time