1. Weight: 472g 2. Dimensions: 29.2 x 15.5 x 2cm 3. Features: own card slot, multi-device compatibility, Bluetooth connection, chocolate button, built-in lithium battery, multi-device switching 4. Interface type: USB 5. Transmission method: Bluetooth 3.0 6. Transmission distance: about 10m 7. Battery capacity: 280mAh 8. Working hours: about 93 hours 9. Key life: 3 million times 10. Charging time: about two hours 11. The integrated card slot has a thickness of about 12.5mm, supports 9.7 inch iPad horizontally, and has an elevation angle of about 110 degrees. It is more comfortable to watch and read.
