Master 2.4G Wireless Keyboard & Mouse combo Silent Click 1600 DPI USB Receiver -Gray and White

Master 2.4G Wireless Keyboard & Mouse combo Silent Click 1600 DPI USB Receiver -Gray and White. Key features: keyboard Characteristics:; Available for PC and notebook; Vista, 7, 8, 10, 11, Mac; keyboard Specification：; Ambient conditions:; Working temperature:; 20°C ~ +60°C; Mouse Characteristics:; 4 D; Working on any surface except glass surface; Mouse Specification：. Specifications: Full size: 105 keys; Interface: USB; Style: office; Size: 440 × 136× 30mm; Weight: 498g; Wireless distance: 10m; Wireless Technology: 2.4Ghz; Key life: 5,000,000times; Power supply: 1*AAA Batteries; System Requirements: Windows ME, 2000, XP; Working voltage: 1.5V; Working current: 10mA; Ambient temp: 0°C ~ +45°C; Working Humidity: < 85% RH; DPI: 800-1200-1600; Tracking Method: Optical; Size: 107.5*63.5*33MM; Weight: 48g; Power supply: 1*AA Batteries; Working voltage: 1.5V DC.