Features - Color: As shown. - Material: Metal and PCB Board. - Size: 8x6x4cm - Power range: 3.7~5.5V - Using the anti-static bag exquisite packaging the module, to avoid the electrostatic damage in transit. - No soldering with speaker terminals for easy wiring. - Support TF (mobile phone memory card) and U disk play mode. - Support U disk (test 32G), TF (test 16G) play mode; power on default TF mode, if the TF does not exist automatically jump to the U disk mode, and both devices have installed,then you can manually set the play mode. - Support MP3 format, playing power on automatically.When mp3 is played the red LED flashes. - Buttons can be adjusted up and down to control songs,volume up and down, pause or play, mode switching. - Press menu button enter the single/ all song play mode. The default mode is the all song mode when power up. Pressing the Repeat button can replace the circulating mode. - Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand