KuGi Samsung Galaxy Tab S3 9.7 Keyboard case,Ultra-thin Detachable Bluetooth Keyboard Stand Portfolio Case / Cove for Samsung Galaxy Tab S3 9.7-Inch Tablet w/ S Pen SM-T820 / T825 (Black) DETACHABLE Wireless keyboard that works seemlessly with your Samsung Galaxy Tab S3 9.7-Inch Tablet w/ S Pen SM-T820 / T825 Real "hard" laptop style keyboard, giving you better typing experience than silicone keyboard as other cases Premium PU leather and microfiber interior adds comfort and an additional layer of Protection; Protect and secure your Samsung Galaxy Tab S3 9.7-Inch Tablet w/ S Pen SM-T820 / T825 from shocks, scratches and dust. Precise cut-outs with full access to all controls and features.Button up each corner to achieve the best protection,Supporting function, convenint to use Charging time 4 - 4.5 hours; Estimated uninterrupted working time 90 hours