For Samsung Galaxy Tab S9 A710B-A Candy Color TPU Touch Bluetooth Keyboard Leather Tablet Case with Pen Holder(Black)

1. BT 3.0 standard interface2. Effective operating distance: 10 meters3. Modulation method: GFSK4. Working voltage: 3.0-4.2V5. Working current: Less than 2.5mA6. Standby current: Less than 0.3mA7. Sleep current: Less than 40uA8. Charging current: Greater than 200mA9. Standby time: Greater than 100 days10. Charging time: 3-4 hours11. Lithium battery capacity: 200mAh12. Sustainable working hours: 100 hours13. Lithium battery life: 3 years14. Button force: 80 +/- 10g15. Button life: 5 million clicks16. Working temperature: -10 to 55 degrees Celsius17. Keyboard with touchpad18. Product size: 25.3 x 18.4 x 2.2cm19. Weight: 582gSpecification: General Compatible with Samsung:  Galaxy Tab S9 Package Weight One Package Weight 0.65kgs / 1.44lb One Package Size 28cm * 21cm * 2.5cm / 11.02inch * 8.27inch * 0.98inch Qty per Carton 20 Carton Weight 14.00kgs / 30.86lb Carton Size 45cm * 26cm * 29cm / 17.72inch * 10.24inch * 11.42inch