For Lenovo Tab Plus Leather Case + Bluetooth-compatible Keyboard with Backlight Trackpad 【Perfectly for Your Device】 This case allows full access to all features & controls (cameras, speakers, ports & buttons) without removing the case. Perfect fit, precise cut-outs provide easy access to all of the features & functions of your tablet 【Detachable Bluetooth-compatible Keyboard】 This protective set includes a PU leather case + a wireless Bluetooth-compatible keyboard. The keyboard is slim and portable, which is very suitable for traveling and business trips 【Built-in Touchpad】 The integrated touchpad allows multi-gesture controls that easily achieve all the functions 【Backlit Keyboard】 The soft backlight provides illumination and enables smooth typing even in dark environments 【With Stand】 The stand case makes it much more comfortable for typing, watching videos, Internet surfing, and reading while keeping both your hands free & avoids any joint pain 【Fully Protection】 High-quality material combined with excellent workmanship makes this case feel very stylish. Fully protects your device against shock, abrasion, scratch, fingerprint, dirt, etc. Keys function introduction: FN+C key: open the Bluetooth-compatible keyboard FN+Ctrl key: return to the main page  FN+Win key: close the touchpad FN+F11 key: volume+ Other functions can be used according to keyboard prompts Specifications: Bluetooth-compatible version: 3.0 Li-ion battery capacity: 150mAh Working time: 100 hours Standby time: >100 days  Battery life: 3 years  Number of key presses: 5 million times