***** ********** ***** ***** *****Best Quality Guranteed. ***** *****Rechargeable Keyboard and Mouse SetThis keyboard&mouse combo is made of sturdy and durable aluminum alloy brushed panel with large capacity built-in battery(Keyboard: 4000 mAh, Mouse: 800mAh), ensure a long battery lasting working time, decreases the frequency of charging, and the save power design make the keyboard auto enter sleep without operation in 5 minutes, press any key can wake it up. ***** ***** 2.4G TransmissionThis mechanical gaming keyboard&mouse set featured with easy plug and play, they shared a USB receiver, with the advanced 2.4G technology, they can easily connected with the computer, laptop, etc, by inserting the USB receiver into the USB port of the PC device you want to connect, no need to install any software, very convenient, note: when connected, pls make sure the keyboard and mouse is turned on. ***** *****Mixed Colorful Backlit ModeThe keyboard can offer adjustable purple blue red mixed colorful