*Function Keys: 104 primary keys 
*Switch button life: >300,000 times
*Works with: windows XP/Vista/Windows7/8/10/MAC OS
*Working Voltage: 5.0±0.25V DC
*Working Temperature: 0 ~ 50°C
*Working Humidity: 20% ~ 90%RH
*Working Current: <0.5watt
*USB Interface
*Case: ABS plastic
*Ergonomic design