Keyboard: Wireless carrier frequency: 2402MHz-2480MHz Operating frequency: 16, automatic frequency hopping Rated working current of keyboard: 28mA/3V Tracking system: optical Resolution: 1000CPI Photoelectric sensor cannot work on mirror or clean glass Battery life may vary depending on individual use Do not discard the battery or throw it into the fire. When replacing the battery, please put the old battery into the battery recycling box System support: Windows Me/2000/XP/Vista operating system, and an unoccupied USB interface Mouse: Rated working voltage of mouse: 1.5-3V Rated working current of mouse: 10-15mA Mouse resolution: 800-1200DPI Wireless working channels: 16, automatic frequency hopping Wireless operating frequency: 2.402-2.480GHz Wireless transmission speed: 1-2M bps Maximum effective distance: 6-10 meters Maximum acceleration: 28 inches/second Image processing: 3000 frames/second Mouse button life: 3-5 million times Operating temperature: - 15 ℃ to 60 ℃ Keyboard size: 36.8 * 14.3 * 2.63cm Net weight of keyboard: 390G (receiver) including USB ) Keyboard working voltage: 3.0 V Mouse size: 11.6 * 6.6 * 3.5cm Net weight of mouse: 63 ± 2 g Mouse DPI: 800, 1200, 1600 Mouse working voltage: 1.5V. Wake up method: press any key Service time: 3 million hits Product material: ABS+PC Transmission distance:=10m Battery: 2pcs of AA (keyboard), 1pc of AA (mouse) Trial system: MAC, Windows, Lin Package content 1 * Wireless keyboard 1 * Wireless mouse 1 * Nano USB receiver (stored on the back of the keyboard) 1 * User Manual