Multi Function Bluetooth MP3 Audio Lossless APE Decoder Board With APP Control EQ FM Spectrum Display Power Supply: DC9~12V power supply (can be powered by 3.7-5V battery) Appearance size: 120x63mm Weight: 65g Out Ranger: ≥500MV Rated input: 12V / above 1A FM Frequency: 87.5 - 108MHz APP: BTMate Operating temperature: -20 ° C~60 ° C Features: 1. Support stereo Bluetooth speaker function, mobile phones and other devices can send music to speakers (A2DP) via Bluetooth; 2. Support the speaker terminal to control the up and down music through the Bluetooth control mobile phone and other devices, adjust the volume; 3. Bluetooth is based on CLASS 2 power level, adopts Bluetooth 4.2, compatible with Bluetooth 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, Bluetooth 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 Bluetooth, play card/U disk music and FM in case of Bluetooth 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 Bluetooth call function 22. LED digital tube indicates working status and playing time Package Included: 1 x Multi Function Bluetooth MP3 Lossless APE Decoder Board with remote