[Compatible Model] Ultra-thin Bluetooth keyboard case designed for iPad 10.9 (2022) with two adjustable support angles [Ultra-Thin Design] Lightweight and convenient to carry, weighing only 0.41kg [Magnetic Attachment] The case features automatic magnetic attachment with internal magnets. The tablet naturally attaches and forms a stable support [Upgraded Button Battery] Offers ultra-long standby time with a battery life of 365 days Specifications: Bluetooth version: standard Bluetooth 5.0 Working distance: within 10 meters Modulation mode: GFSK Working voltage: 3.0-4.2V Working current: <2.5mA Standby current: <0.3mA Sleep current: <40uA Current: > 200mA Standby time: > 100 days Charging time: 3-4 hours Button battery capacity: 250mAh Sustainable battery working time: > 30 hours Battery life: 1 year Key force: 80±10g Key life: 5 million clicks Working temperature: -10 to +55℃ Material: PU+ABS