Detachable design, magnetic adsorption PU leather case + wireless Bluetooth-compatible keyboard With rotation shaft support stand design, keeping both your hands free & avoids any joint pain The colorful backlight provides illumination and enables smooth typing even in dark environments The Integrated touchpad on the keyboard allows easy gesture controls With a pen slot for stylus storage, no need to be afraid of losing your stylus pen (stylus is not included) High-quality material with excellent workmanship. Fully protects your device against shock, abrasion, scratch, fingerprint, dirt, etc. Specifications: Product No.: T11B-AS Bluetooth-compatible version: 3.0 Operating voltage: 3.0V~4.2V Operating current: ≤3.0mA Operating time: ≥80 hours Low power alarm: 3.0~3.3V Sleep current: ≤0.3mA Standby time: ≥100 days Battery capacity: 150mAh Key force: 50g~70g Key life: 3 million times Charging input: 5V/1A Connection distance: ≤10m Charging time: 2-3 hours Charging current: ≤200mA Wake-up time: 2~3 seconds Charging interface: Type-C Working temperature: -10℃~+55℃ Pairing password: None Weight: 605g Dimensions: 25.1*19*2cm