Keyboard: Wireless Carrier Frequency: 2402MHz-2480MHz Working Frequency: 16, automatic frequency hopping Keyboard Rated Operating Current: 28mA/3V Tracking System: Optical Resolution: 1000CPI The photoelectric sensor may not work on a pure mirror or glass Battery life may vary depending on individual use Do not throw the battery or throw it into fire. When replacing the battery, put the old battery in the battery recycling box System Support: Windows Me/2000/XP/Vista operating system and an available USB interface Mouse: Mouse Rated Operating Voltage: 1.5-3V Mouse Rated Operating Current: 10-15 mA Mouse Resolution: 800-1200 DPI Wireless Working Channels: 16, automatic frequency hopping Wireless Operating Frequency: 2.402-2.480GHz Wireless Transmission Rate: 1-2M bps Maximum Effective Range: 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 * 2.63 cm Keyboard Net Weight: 390G (receiver) including USB) Keyboard Operating Voltage: 3.0V Mouse Size: 11.6 * 6.6 * 3.5cm Mouse Net Weight: 63 ± 2g Mouse DPI: 800, 1200, 1600 Mouse Operating Voltage: 1.5V. Waking Method: Press any key Service Time: 3 million visits Product Material: ABS+PC Transmission Distance: <=10m Battery: 2 pcs AA (keyboard), 1 pcs AA (mouse) Test System: MAC, Windows, Lin Package Contents 1 * Wireless Keyboard 1 * Wireless Mouse 1 * Nano USB Receiver (stored on the back of the keyboard) 1 * User Manual