With Power Amplifier Bluetooth Decoder Board Recording Call Lossless Motherboard 1. Chip: ht326 2. 7V-22V power supply 3. Support folder selection and playback 4. Signal-to-noise ratio: greater than or equal to 70dB 5. Radio frequency range: 87.5~108MHz 6. Support USBTFBluetoothRadioAUX automatic switching 7. Support power-off memory function: memorize the song and volume before power-off 8. The product has a power amplifier, supports balanced output, stereo power 2 x 25W 9. Support MP3WMAWAVAPEFLAC version song decoding 10. Support callssupport recording, recording needs to be operated in TF mode or USB mode 11. Size: 92x41mm 12. Weight: 40g Packing list: -Host x 1 -2P power cord x 3 -1P radio antenna x 1 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.