Leather Case: The combination of leather cover and keyboard, makes your tablet be a laptop for convenient carrying and using Multi-angle adjustment, with grooves on the bottom, can set the support stable Easy-open clasp, open and close with the side magnetic clasp Keyboard: It is made of high-quality material, strong and durable, and has a long service life Wireless Bluetooth 3.0 standard interface, easy to use and wide compatibility, stable connection 200mAh battery capacity, enough for daily use Ultra-thin and lightweight design, portable and compact Specifications: Bluetooth: Bluetooth 3.0 standard interface Effective operating distance: 10 meters Modulation method: GFSK Working voltage: 3.0-4.2V Working current: <2.5mA Standby current: <0.3mA Sleep current: <40uA Charging current: >200mA Standby time: > 100 days Charging time: 3-4 hours Lithium battery capacity: 150mAh Sustainable working hours: 100 hours Lithium battery life: 3 years Button force: 80 ±10g Button life: 5 million clicks Working temperature: -10 - +55°