D50 Bluetooth Digital Amplifier Board with Optical Audio Input Subwoofer low fever long lasting Due to different batches, there may be differences in the appearance, color, and printing of the product, which will not affect its use Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Voltage:AC110V Model:D50 Colour:Black Material:Metal+Plastic Size:17.5x8cm Package Contents: 1 amplifier board 1 x Remote control 1 Cable 1 x DC Cable 1 x Speaker 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.