USB keyboard and mouse to wireless converter, an office tool for the multi-terminal era, supports switching between up to 16 devices. Keyboard and mouse Bluetooth converter for laptop, mobile phone, tablet, and Android devices to enable Bluetooth wireless keyboard and mouse functionality. This product has no internal battery and requires a 5V power supply. Please prepare the power cord separately (a standard Type-C cable is sufficient). Color: Black Material: Plastic Package Contents: 1 x Wired Keyboard Mouse to Wireless Bluetooth Converter 1 x Wireless Receiver Only the items listed above are included; other products are not included. Note: Due to light reflection and differences in display screens, the color of the item in the image may vary slightly from the actual product. Measurement error allowance is +/- 1-3 cm.