2-in-1 Bluetooth Keyboard and Tablet Cover Bluetooth keyboard with PU leather and TPU tablet protective cover 2-in-1 design with convertible stand for hands-free use Stand function supports comfortable viewing for movies and web browsing Built-in loop to hold a stylus pen (stylus not included) Durable Bluetooth 3.0 keyboard with long-lasting key life Rechargeable built-in lithium battery for convenient charging and extended use Slim and lightweight design ideal for travel and business use Specifications: Model: AH21 Weight: 543g Product Size: 26 x 19.2cm Bluetooth Version: 3.0 Effective Operating Distance: 10 meters Modulation Mode: GFSK Operating Voltage: 3.0–4.2V Operating Current: <2.5mA Standby Current: <0.3mA Sleep Current: <40uA Charging Current: >200mA Standby Time: >100 days Charging Time: 3–4 hours Battery Capacity: 200mAh Sustainable Working Time: 100 hours Battery Life: Up to 3 years Key Force: 80±10g Key Life: 5 million clicks Operating Temperature: -10°C to 55°C