Support for Bluetooth. Multi-decode MP3, WMA, WAV, APE lossless format music. Support to read USB disk, read memory card, radio FM. Support external audio input LINE IN (AUX). Power supply 12V, support power-off memory. Support infrared remote control. Made of material, this decoder board is rugged. Excellent craftsmanship, perfect size and easy installation. USB: Connect USB flash drive (maximum support 32GB) LED color screen: digital screen display, showing red TF: Connect TF memory card (maximum support 32GB) AUX: audio input interface VOL-: Short press is to select the previous song; long press is to decrease the volumePLAY/PAUSE: Short press is the switch between pause and play; long press is the FM FM automatic station VOL+: Short press is to select song; long press is to increase the volume MODE: Switching of USB/TF/FM/LINE IN/BLUETOOTH Recording function 1. Press and hold the MODE button to start recording. Press and hold the MODE button again to cancel the recording function. 2. Press and hold the PLAY/PAUSE button to play the recording file. 3. whenrecording, you need to connect a storage device, such as: U disk or TF card note: Different batches may have different appearance, which does not affect use. Material: plastic colour: Black Package Contents: 1 x Decoder Board 1 x Remote control