KuGi Samsung Galaxy Tab S3 9.7 Keyboard case,Ultra-thin Detachable Wireless Keyboard Stand Portfolio Case/Cove for Samsung Galaxy Tab S3 9.7-Inch Tablet w/S Pen SM-T820/T825 (Black-01) DETACHABLE Wireless keyboard that works seemlessly with your Samsung Galaxy Tab S3 9.7-Inch Tablet w/ S Pen SM-T820 / T825 Precise cut-off provides full access to all ports and features Real "hard" laptop style keyboard, giving you better typing experience than silicone keyboard as other cases, durable PU leather construction with secure magnetic closure It is easy to use and easy to setup so you get the best of both worlds .Great for the traveling business person, student, and everyone else in between. Charging time 4 - 4.5 hours; Estimated uninterrupted working time 90 hours