Module: -009 Weight: 206G ( With Acrylic Shell ) Power Amplifier Circuit: HT6872 Audio Amplifier Speaker: 2 inch 3W*1 Power Supply Mode: 5V DC Power Supply ( Phone Charger, Power Bank, etc.) Audio Input: bluetooth or Audio Cable Two Input Methods Switch Terminal: Power Switch, bluetooth On Or Off, Up And Down Music Function Auxiliary Function: Spectrum Function (LED Flashing) Colour: picture color Material: PC+metal Package Contents: 1 * Bluetooth Audio DIY Pack 1 * Audio cable 1 * USB power supply cable Only the above package content, other products are not included. Note: Light 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.