Hard PC + PU leather, full degree protect your tablet Supporting stand with adjustable angle, meeting your watching needs Designed with a pen slot for stylus pen (stylus pen not included) All hole locations have been reserved and do not affect the usage effect Provides all-round protection against daily wear and tear, scratches, marks, and scrapes Slim and portable keyboard, suitable for traveling and business trips 3 levels of brightness can be adjusted to meet your needs The Bluetooth keyboard has a long-lasting button life, durable to use The keyboard has a built-in lithium battery, convenient to charge and use Specifications: Operating Voltage: 3.1V - 4.2V Working current: 3.0mA Continuous working hours: 93 hours Low Voltage Alarm: 3.0 - 3.1V Sleep current: 0.5mAh Standby time: 23 days Lithium battery capacity: 280mAh Lithium battery life: 300 cycles Button life: 3 million times Key strength: 50g-80g Effective distance of connection: 8m Charging interface selection: MICRO Charging current: 200mA Charging time: 2 hours Reconnection time: 3 seconds Wake-up time: 5 seconds Whether to input connection pairing: NO Operating temperature: -10 - +55 Keyboard status - Indicator Color - Indicator Status: Power-on state: power indicator - green - long on 3 seconds Pairing status: Bluetooth indicator - blue - 1 flash for 1 second (180 seconds) Low voltage state: charging indicator light - red - 1 flash for 1 second (below 3.0V, it will automatically turn off) Charging status: Charge indicator - red - keep on (until the battery is saturated) Fully charged state: power indicator - green - keep on Compatible with: Lenovo Tab M10 (Gen 3) Package included: 1 x Bluetooth Keyboard 1 x Leather Case Other items not included