Parameters:
1. Bluetooth standard: 3.0.
2. Effective distance: 10 meters.
3. Standby time: 100 days.
4. Continuous working hours: 70 hours.
5. Charging time: 4-5 hours.
6. Lithium battery capacity: 200mAh.
7. Lithium battery life: 3 years.
8. Key life: 500 million times.
9. Aluminum alloy base plate integrated can be used as a bracket.
10. Product size: 23.8x28.6x1.7cm.
11. Single bare weight: 756g.
12. Suitable for iPad Pro 12.9 inch (2018).