Ultra-Slim Portable 3.0 Wireless Tablet Keyboard Type-C Charging Built in Battery for Surface Pro 3/4/5/6/7 PC Laptop Universal
Feature:
1. Ultra-thin and lightweight 4mm style, better than the original, easy to carry
2. 3.0 wireless fast link, polymer battery long standby, strong magnetic adsorption, comfortable button feel
3. Four-cornered bezel design provides daily protection for the screen
4. Comfortable, breathable and heat-dissipating, not hot for a long time

Specifications:
Tablet Model: for Surface Pro 3/4/5/6/7
3.0 standard interface
Effective operating distance: 10 meters
Working voltage: 3.0-4.2V
Working current: <8mA (when the touch panel is working)
Standby current: <0.3mA
Sleep current: <40uA
Charging current: 100mA
Standby time: more than 100 days
Charging time: 2-3 hours
Lithium battery capacity: 220mAh
Continuous working time: 100 hours
Lithium battery life: 3 years
Pressing force: 80 ± 10g
Key life: 5 million clicks
Working temperature: -10 ~ + 55 ℃
Charging interface: type-c
Color: Black
Size: 295*220*5mm/11.61*8.66*0.19in

Package contents
1 X Keyboard 
1 X Charging Cable