USB keyboard and mouse to wireless converter, an office tool in the multi-terminal era, supports 16 device switching. Keyboard and mouse to Bluetooth converter, laptop, mobile phone, tablet, Android to Bluetooth wireless keyboard and mouse. This product has no internal battery and needs to be plugged in a 5V power supply. Please prepare the power cord by yourself (standard TYPE-C line is sufficient). Color: Black Material: plastic Package Contents: 1 * Wired Keyboard Mouse To Wireless Bluetooth Converter 1 * Wireless receiver 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.