This is a Tri-Mode Mechanical Gaming keyboard. It was bought 3 months ago, but used for only 1 day. All parts of the keyboard are working properly. The RGB lighting condition is also perfect. There are no scratches or marks of any kind. It is just like brand new. Since this is a Tri-Mode keyboard, it can be used 1. Through a USB dongle, which will be included with the keyboard. 2. Via Bluetooth. 3. With a Type-C cable. Photos along with the online copy of the cash memo have been attached. Specifications: 1. Mechanical switch 2. Blue switch 3. 2.4G/Bluetooth/Wired connection 4. 68 keys 5. 2000mAh battery