Features: Dual mode, support USB wired/2.4GHz wireless connection, the Type-C charging interface can charge the keyboard in wired mode. 2.4GHz wireless technology ensures more stable signal transmission, 10m effective transmission distance, strong anti-interference ability. The red switch has noise reduction feature, straight up and down, no paragraph sense, smooth input, suitable for office typing. 61 keys compact layout, easy to carry and use. English&Russian bilingual keyboard can meet the needs of different language users. N-key rollover, the keyboard provides 19 kinds of RGB light effects for you to choose. Ergonomic design, suspension keycap, comfortable typing, not easy to fatigue. Specification: Color: Black Switch: Red Switch Number of keys: 61 Connection mode: USB wired/2.4GHz wireless Language: English/Russian Item size: 29 * 10 * 4cm /11.42 * 3.94 * 1.57in(L * W * H) Item weight: Approx. 465g /16.4oz Packing list: 1 * Keyboard 1 * USB receiver 1 * Type-C cable 1 * User manual