DSP Bluetooth MP3 Decoder Board Karaoke Preamp Mixer EQ Lossless Fiber Coaxial Equalizer for Amplifier Audio Home Theater

Specifications: Power Supply: DC9~12V power supply (can be powered by 3.7-5V battery) Appearance size: 324x194mm Out Ranger:800MV Rated input: 12V/0.5A Rated power consumption: USB playback current 120MA Other status 80MA 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 to switch the up and down songs through the Bluetooth control mobile phone and other devices, adjust the sound 3. Bluetooth is based on CLASS2 power level, adopts Bluetooth4.0 specification, 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. Music formats are: MP3, WMA, APE, FLAC, WAV (excluding license) AAC 5. Support fiber coaxial input 6. Support AUX input, external audio source can access the speaker through AUX and adjust the volume on the speaker 7. Support AUX and Bluetooth recording (both USB and card can be used) 8. Support function switching hotkey (one button in Card, u disk, AUXIN, fiber, coaxial, Bluetooth playback) (MODE button on the remote control, function switch button) 9. Support firmware encryption 10. Support USB for firmware upgrade 11.FAT16, FAT32, ExFAT/Fat64 file system support 12. Support folder: 512 folders including root directory and hidden directory 13. Number of supported files: The number of files is not limited in the single directory, and the total number of music files is 65535 or less. 14. Support SD/MMC/SDIO 15. Support dual USB, USB_HS and USB_FS 1630 level volume (volume level can be configured) 17. Support background Bluetooth, can play card / U disk music and FM in the case of Bluetooth connection 18. Support Spp remote control, mobile phone can install remote control function after installing APK or APP 19. Supports one-way microphone and one-way guitar input (standard 6.35 socket and card seat support) 20. Music 7-segment EQ, microphone high and low sound adjustment (APP adjustable 5 segment EQ) guitar high school bass adjustment (APP adjustable 7-segment EQ) microphone Adjustable delay and reverb, microphone and guitar independent volume adjustment 21. Support vocal elimination, microphone priority function 22. The unique dot matrix + break screen indicates the working status and playing time, as well as the song title and spectrum display, at a glance 23. Support both analog output and I2S output 24. DC (DC) input for 9V to 12V power supplies 25. Higher security: anti-power reverse design, even if the power is reversed, it will not burn the product. >>>Manual: Click here to open