Keyboard: Wireless carrier frequency: 2402MHz-2480MHz Operating frequency: 16, automatic frequency hopping <><brbr>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<br> <br> 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 °C to 60 °C <br><>Keyboard size: 36.8 * 14.3 * 2.63cm <><br>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