1The keys are made of ABS material, which is firm and scratch resistant, and feels comfortable when hitting. 2The keyboard and the shell can be separated, and the shell is made of PU leather, which is soft and will not damage the keyboard. 3The shell is shockproof and can be used as a keyboard protector to keep the display clean, or as a tablet holder. 4The keyboard is wirelessly connected to the tablet, and can be used in a protective case or detached for separate use. 5The bluetooth keyboard supports for Android system and the size is suitable for Samsung Galaxy 10.4in Tab A7 T500/T505 tablet. Item Type: Bluetooth Keyboard Material: PU Leather + ABS Applicable Model: For Samsung Galaxy Tab A7 T500/T505 Bluetooth: Bluetooth 3.0 standard interface Modulation Method: GFSK Working Voltage: 3.0-4.2V Working Current: 200mA Keystroke Force: 80 10g Function: Fn combined multimedia function Support Protocol: Bluetooth 3.0/4.0/1.1 Power Supply: USB interface connection Built-in Battery Capacity: 200mAh (polymer lithium battery) Battery Life: 3 years Working Environment Temperature: -20- 55 Charging Time: 3-4 hours (8 hours to fully charge for the first time, full charge can be used later) Continuous Working Time: 100 hours Standby Time: >100 Button Life: 5 million times Effective Operating Distance: Approx. 10m / 32.8ft How to use:1. Turn on the bluetooth keyboard holster and push the switch in the upper right corner from 0FF to ON. At this time, the holster keyboard is activated, and the blue light will turn off after 3 seconds. 2. Then click Connect next to it. The blue light is on and the Bluetooth light is flashing. 3. Turn on the tablet, find-Settings-Turn on wireless and network-Turn on Bluetooth-Search nearby devices-Search for the Bluetooth keyboard name of the protective case (Bluetooth keyboard) and click Connect (Press FN+Q W E to switch the corresponding system) 1 x Keyboard Case 1 x Bluetooth Keyboard 1 x Charging Cable 1 x User Manual 1. Please charge the wireless keyboard for 8 hours the first time you use it. After normal use, the service life can be increased.2. Do not put electronic equipment in a humid place.