Removable Bluetooth keyboard leather case makes your tablet transform into a laptop in less than a second Easy-open clasp, open and close with the side magnetic clasp This book folio cover can be folded as a stand for an adjustable viewing angle to free your hand Prevent your device from shocks, drops, and scratches Built-in elastic strap on the side for storing the stylus pen stylus pen not included Wireless Bluetooth 3.0 connection, easy to use and wide compatibility, stable connection Fine workmanship and delicate leather, cost-effective Ultra-thin design, slim and lightweight, adding no bulky feeling to your device Specifications Bluetooth Bluetooth 3.0 standard interface Effective operating distance 10 meters Modulation system GFSK Working voltage 3.0-4.2V Working current lt2.5mA Standby current lt0.3mA Sleep current lt40muA Charging current gt200mA Standby time gt100 days Charging time 3-4 hours Lithium battery capacity 200mAh Sustainable working hours 100 hours Lithium battery life 3 years Button force 80plusmn10g Button life 5 million clicks Working temperature -10 - 55 Certificate MSDS