ASHATA 753 Wireless Keyboard and Mouse Combo, 2.4G Silent Ergonomic Keyboard Mouse Set with USB Receiver, Ultrathin Design for Computer, Desktop, PC, Laptop

How to Use: Open the battery cover and insert the battery, take out the receiver and insert it into the computer USB port, you can use it. Specification: Item Type: Wireless Keyboard and Mouse Combo Keyboard: Wireless Data Transmission: 1mbps Frequency: 2405MHz-2476MHz Channels: 16 Distance: 30m / 98ft Keyboard Key Life: More Than 5 Million Times Working Voltage: 1.5V Working Current: 2mA Battery Type: 1 AAA Battery ( Battery Not Included) Mouse: Wireless Data Transmission: 1mbps Frequency: 2405MHz-2476MHz Channels: 16 Distance: 30m / 98ft Mouse Button Life: More Than 3 Million Times Working Voltage: 1.5V Working Current: 11mA Battery Type: 1 AA Battery ( Battery Not Included) Package List: 1 x Keyboard1 x Mouse 1 x USB Receiver 1 x User Manual