Kindly Note: The Bamboo Mouse and Keyboard Share one receiver, the receiver is located inside the mouse. Energy multilevel saving mode More than 12 channels frequency hopping, strong anti interference ability Supports computer sleep wake up and automatic sleep awake The mouse resolution is 1000 to 1500 DPI Receiving and transmission will always be in online mode Keyboard not only works for Mac PC, also for other devices which features USB host port like projector/ TV / Android OS .. Suits with Windows 2000/ 2003/ XP/ Vista/ Win7/ Win8/ Win10 OS Specifications: Transmission distance: 20 to 30feet Keys number: 113 keys Keyboard weight: 1.1 pounds Mouse weight: 0.16 pounds Package weight: 1.9 pounds Keyboard size (L x W x H): 15.7 x 5.3 x 1 inch Mouse size (L x W x H): 3.5 x 2.4 x 1.4 inch Package size (L x W x H): 20.5 x 6.5 x 1.6 inch Package includes: 1 Wireless bamboo keyboard 1 Wireless bamboo mouse 1 English User manual Troubleshooting: The Keyboard and Mouse are already matched to the USB Receiver. If they dont connect to each other please follow this Steps: Keyboard: 1. Open the battery cover of the keyboard at the bottom, and install the batteries correctly. 2. Press ECS and Plus key for one second to enter keyboard mode for code. 3. Put the USB receiver into the computer USB port within 10 seconds, put the keyboard as close as possible to the receiver. When the indicator light goes out, the process is finished successfully. Mouse: After equipping the mouse with batteries, you should hold the left, middle and right three buttons for 5 seconds. During this process, the indicator at the back of the mouse will first flash red lights then go dark, which means you have successfully matched the mouse. If the code is not set successfully, repeat the above steps. Common Problems in the Keyboard/Mouse Matching Steps: 1. When the power of the batteries is not enough, the code cannot be matched successfully. Common Problems in the Keyboard/Mouse Matching Steps: 1. When the power of the batteries is not enough, the code cannot be matched successfully.