Yunseity Wireless Keyboard and Mouse Set, 2.4G Wireless Keyboard and Mouse Combo, Portable Ergonomic Keyboard Mouse Combo for Computer Desktop Laptop Tablet (Gold)

How to Use: 1. Install the battery for the mouse and keyboard 2. The USB receiver is plugged into the computer's USB port, and it can be used Specification: Item Type: Keyboard Mouse Combo Material: ABS Transmission Method: 2.4Ghz Wireless Mouse Battery Specifications: 2 x AAA Batteries (Not Included) Keyboard Battery Specifications: 2 x AAA Batteries (Not Included) Voltage: 3V Current: 1.5mA Frequency Range: 2402MHz-2480MHz Number of Keys: 78 Package List: 1 x Keyboard1 x Mouse 1 x USB Receiver