[2.4GHz wireless connection] This wireless keyboard and mouse combination uses 2.4Ghz wireless connection technology. The keyboard and mouse share a USB receiver to ensure a firm and reliable connection. The receiving distance is 10 meters, so you can choose a comfortable distance from the computer.Compared with other keyboards, the silent design can reduce noise. Bring a comfortable and quiet office experience[Smart Power Saving]The wireless keyboard has smart power saving function. When the keyboard is idle for more than 5 seconds, the keyboard will automatically go to sleepThe built-in 3000mAh battery rechargeable backlit keyboard is a great choice for personal choice or as a gift.[Precise wireless mouse] The carefully crafted wireless mouse contains a professional chip and a high-precision engine, allowing you to click the mouse quickly and accurately. Ergonomic mouse, matte texture, excellent hand feeling, not easy to fatigue after long-term use800-2400DPI free adjustment, easy to control different game fieldsLighting effect: colorfulUsable wireless range: 10 metersCompatibility: Windows XP / Vista / 7/8 / 10 operating system, the latest version of Mac OS operating systemWireless: 2.4GhzCharging power supply: Built-in 3000mAh battery (keyboard) Built-in 800mAh battery (mouse)Waterproof: support life waterproofColour:blackMaterial:ABSSize: 355 x 130 x 45CMPackage Contents:1 x mouse1 x keyboard1 x Receiver1 x charging cableOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.