The remote control can be controlled by remote control to realize the volume control of the switch. Interface 3.7-5V DC supply to automatically play music, 33W+3W stereo amplifier, support Bluetooth, support -off memory, U disk to play music. The outer box is made of 6 pieces of 3mm high-transparency plastic spliced . Exquisite and beautiful, the brown protective film needs to be removed before splicing. The delivery is a complete set of spare parts, which needs to be welded and assembled, with a complete set of installation instructions. Support bluetooth, support -off memory, U disk play music, can be powered by bank. Colour: as shown Material: plastic Package Contents: 1 set * Bluetooth speaker kit Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.