ST590S Bluetooth Keyboard PU Case For Galaxy Tab A 10.5 inch T590 GoldFeatures: 1. Accuraty fit the corners of the equipment. 2. Precise cutting for easy access to all buttons and ports for smooth operation. 3. Easy to insert and remove. 4. Applicable to Samsung Galaxy Tab A 10.5 inch T590 / T 595. 5. Does not include a tablet. Specifications: 1. Product size: 255x174x22mm. 2. Net weight of the product: 600g. 3. Material: outer skin fine sheep grain PU material, ABS plastic keyboard. 4. Bluetooth: 3. 0. 5. Effective operating distance: 10 meters. 6. Modulation method: GFSK. 7. Working voltage: 3.0-4.2V. 8. Working current: less than 2.5mA. 9. Standby current: less than 0.3mA. 10. Sleep current: less than 40 microamps. 11. Charging current: greater than 200mA. 12. Standby time: more than 100 days. 13. Charging time: 3-4 hours. 14. Lithium battery capacity: 480mAh. 15. Sustainable working hours: When the backlight is not turned on, it is longer than 100 hours (the backlight is turned on for 5 hours). 16. Lithium battery life: 3 years. 17. Button force: 70-90g. 18. Key life: 5 million clicks. 19. Operating temperature: -10-55 degrees Csius.