Made of quality PU leather transparent acrylic case, durable for use Can be folded as a bracket stand multi-angle adjustment, for hands-free media entertainment The keyboard has a built-in 420mAh large-capacity lithium battery, convenient to charge and use Equipped with 3 colors backlit so that you can normally use it at night The Bluetooth keyboard adopts a high-speed chip, which can connect to Bluetooth devices in seconds With a pen slot for storage, you are not afraid of losing your pencils pencil is not included Specifications Bluetooth Standard 5.0 Effective operating distance 10 meters Modulation method GFSK Working voltage 3.7-4.0V Working current lt8mA Standby current lt0.3mA Sleep current lt50uA Charging current gt200mA Standby time gt100 days Charging time 2-3 hours Lithium battery capacity 420mAh Sustainable working hours not less than 30 hours Lithium battery life 3 years Button force 80plusmn10g Button life 5 million clicks Working temperature -10 to 55 With backlight yes Charging port Type-C Size 25202cm Weight 566g