COMPATIBILITY: Tab S7 FE 12.4" 2021 [-T730/T736] (Please check your tablet model carefully) Specification: Layout: US Charging voltage: 5 V Bluetooth version: Bluetooth 3.0 Transmission distance: up to 10 m Capacity of battery: 650 mAH Work time: 220 hours without backlight Standby time: 800 hours Package Included: 1 * Bluetooth Keyboard 1 * Case for Samsung Galaxy S7 FE 1 * Micro USB Charging Cable 1 * User manual How to get the keyboard sync with Tab S7 FE: 1.Please fully charge the keyboard and turn it on, the light comes on and then goes off. 2.Press the "FN+C" to open keyboard's bluetooth. 3.Go to your tablet settings, click on bluetooth and look for the keyboard. 4.Click on the keyboard and it will connect. The keyboard automatically enters Sleep mode when it doesn't work for over 15 minutes. Click any key to activate the keyboard. The Bluetooth pairing is automatically interrupted when the tablet is in sleep mode. In order to pursue a higher customer experience, all keyboard cases sold by Wineecy offer 12-months WARRANTY. If any quality problems, Please do not hesitate to contact us and get a new replacement free of charge or refund.