Specifically designed for 10.5 tablet , Compatible with Galaxy Tab S4 10.5 SM-T830 (Wi-Fi)/SM-T835 (LTE) tablet Real “hard” laptop style keyboard, giving you better typing experience than silicone keyboard as other cases Durable PU leather construction with secure magnetic closure 3-in-1 functionality: Wireless V3.0 keyboard + Stand + Premium Leather Case Charging time 2.5 – 4.5 hours; Estimated uninterrupted working time 90 hours