USB-A Slim Wireless Mouse and Keyboard Combo KM-228W

Ergonomic Design: Comfortable tilt, reduce palm fatigue during long use.DPI Adjustment: 800-1200-1600DPI, responsive, free to switch to suit your hand speed.Power Saving: Low power saving technology, the keyboard without operation for 3 seconds into sleep mode, stand-by time up to about 277 days.2.4G Wireless: Stable 2.4G wireless connection range up to 10m.Durable Use: Keyboard key life up to 5 million times. Specs & DetailsWireless Technology: RF 2.4GHzWireless Range: ≦ 10 metersReceiver: Nano receiverRating Voltage/Current: 5V/25mA (USB receiver), 1.5V/1.7mA (keyboard), 1.5V/20mA (mouse)Keyboard Switch Type: Membrane Key Type: Low cap Key Number: 82 Multimedia Key: 12 Composite Control Keys: 4 Battery: 1 AAA battery Dimension: 307x139x21.4 mmMouse Resolution: 800-1200-1600 DPI Button Number: 6 (Left key, right key, scroll, forward, backward, DPI switch) Battery: 1 AA battery Dimension: 109x64x36 mmSystem Requirements: Windows 10/8/7/Vista/XP, Mac OS X 10.4 or later, LinuxWarranty: 2 years warrantyBox Content: 1. Wireless mouse 2. Wireless keyboard 3. USB receiver 4. User manual 5. Warranty card