• Bluetooth V2.0 interface standard
• Material: plastic
• Keyboard size: 140 x 93 x 23mm
• Key number: 80
• Operating distance: 10m
• Modulation system: GFSK
• Operating voltage: 3.0 to 5.0V
• Working current: >5.0mA
• Standby current: 2.5mA
• Seeping current: 200uA
• Charging current: ≥100mA
• Standby time: 60 days
• Built-in rechargeable Lithium battery
• Charging time: 4 to 5 hours
• Lithium battery capacity: 450mAh
• Uninterrupted working time: 40 hours
• Lithium battery lifespan: 3 years
• Key dynamics: 55 ±10g
• Key life: 5 hundred thousand strokes