The business-style leather case is made of high-quality materialnbsp Fine workmanship, and equipped with 3 colors backlit so that you can normally use it at night Comes with Bluetooth keyboard 3.0, has a long-lasting button life, durable to use The keyboard can be disassembled from the case, and the strong magnetism makes the keyboard not easy to fall offnbsp The Bluetooth keyboard adopts a high-speed chip, which can connect to Bluetooth devices in seconds It is charged with the charging cable, and it can be freely carried and used when fully charged Specifications Bluetooth BT 3.0 standard interface Effective operating distance 10 meters Modulation method GFSK Working voltage 3.0-4.2V Working current lt2.5mA Standby current lt0.3mA Sleep current lt40uA Charging current gt200mA Standby time gt100 days Charging time 3-4 hours Lithium battery capacity 450mAh Sustainable working hours 100 hours Lithium battery life 3 years Button force 80 plusmn10g Button life 5 million clicks Working temperature -10degC - 55degC TouchPad Yes Backlight Tricolor