Description: 1. Type: MP3 Decoder Board;Power: 2 x 40W 2. Model: JQ-D128BT 3. Function: Bluetooth Decoder 4. Material: Shell Material: ABS; PCB Board Material: FR4 Detailed Keystrokes 1. Pause: Short Is The Switch Between Pause And Play; Long Is A Radio Fm Automatic Station; 2. Vol-Key: Short Is To Select The Previous Song; Long Is The Volume Down, Double Click To Switch To The Previous Folder; 3. Short Is To Select Song; Long Is The Volume Increase, Double Click To Switch To Folder; 4. Repeat: The Single Loop Function, Again To Cancel The Single Loop, And In Order; 5. Eq: Sound Field Mode, Test 6 Sound Quality; (Classical) (Jazz) (Rock) (Bass) (Normal) 6. Mode Button: Switch Between Usb/Tf/Fm/Audio Input/Bluetooth Function Sequentially; Long To Start Recording, The Button Again To Cancel The Recording Function And Play The Recording File; Internal Recording Only (Only Audio Input Can Be Recorded. Radio Fm. Bluetooth); When Recording, You Need To Connect A Storage Device, Such As: U Disk Or Tf Card; size: 7.5 x 5 x 2.5cm Material: ABS+FR4 colour: As shown Package Contents: 2 x Decoder Board 2 x Remote Control 2 x Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.