Specifications: Keyboard Dimensions: 12.08 x 5.53 x 0.8 inch Mouse Dimensions: 4.35 x 2.33 x 1.07 inch Operating Frequency: 2.4G technology Wake-up Method: Press any button Case Material: ABS Effective Distance: Approximately 32.8FT (10M) Power Supply: 2 * AA Battery (Not included) Compatible Systems: Windows 7, 8, XP, Vista, 10 (Not fully compatible with Mac, OS System.) Package Includes: 1 x Wireless keyboard 1 x Wireless mouse 1 x 2.4G Wireless USB Receiver Kindly Note: This isn't a FULL-SIZE keyboard, wireless receiver is stored in the receiver slot at the bottom of the keyboard. 2 * AA batteries required but NOT included.