1). Open the battery cover of the keyboard on the bottom, install the batteries correctly; 

2). Press “ECS” plus “+/=” for one second to enter keyboard mode for code(Low Indicator long bright

3). Within 10 seconds put the USB receiver into the computer USB port, Keyboard lights as close as possible to the receiver end, LED light goes out, the success of the code.

 4). If the code is unsuccessful, repeat the above steps

Features

• Strong Durability- 500,0000 Times keystroke Test and perform well
• Green&Healthy-  Anti-static, radiation control, fatigue relief,Recyclable, 
• Comfortable Design-Contoured shape and textured natural bamboo grips keep your hand comfortable