Specially designed for Samsung Galaxy Tab S9 SM-X810X816B, Tab S8 SM-X800X806, Tab S7 SM-T970T975T976B. Please check the bottom of your tablet for the model number before purchasing With the Bluetooth 5.2 keyboard case for tablet floating design, strong magnetic suction ensures the safety of your equipment The keyboard has a built-in 1200mAh lithium battery, convenient to charge and use Can be converted to a supporting stand for hands-free movie watching and web surfing When youre working in a dark environment, the keyboards 7-color gradient backlight keeps your eyes from stinging so you can watch in the comfort The keyboards keys can match your fingers perfectly. Giving you a better viewing and working experience The case with keyboard is made of PU leather and microfiber lining that will give you a very soft and comfortable touch, scratch resistant and easy to clean Specifications Bluetooth Bluetooth 5.2 Operating distance 10m Lithium battery 1200mAh Charging interface Type-C port Charging time Charging temperature 0 to 45 Modulation system GFSK Working voltage 3.3-4.2V Operating temperature -20 to 55 Standby time about 100 days after fully charged Working time