Engineered to maximize your productivity with the most popular 104-key full-size layout with a number pad ABS material is impact resistant, non-slip and hard-wearing, has excellent hand feel, easy to handle in all scenarios Symmetrical design for both left and right hands, with a wet-fit grip that relieves your hands of fatigue from long hours of work and plays The mouse has 3 adjustable DPI (800, 1200, 1500). High-speed transmission technology makes it move faster and more accurate 2.4GHz technology ensures a stable and lag-free connection up to 10m Specifications: Interface: USB Connection: 2.4G wireless Lighting effect: no light Lifespan: 3 years Material: ABS Keyboard: Weight: 478g Size: 450x170×28mm Keys: 104 keys Keycap: UK Silk Screen Characters Voltage: DC1.5V±5% Current: 13mA Battery: 1 x AA battery (not included) Mouse: Weight: 73g Size: 105x65x40mm Keys: 4 keys DPI: 800-1200-1500 Voltage: DC1.5V±5% Current: 13mA Battery: 1x AA battery (not included)