Product features:For iPad Keyboard Bluetooth-compatible Solution - Effective distance 10 meters - Standby time: 30 days - Continuous working hours: 70-100 hours - Charging time: 2-4 hours - Lithium battery capacity: 200mHaButton life: 500 million times - Material: Premium Plastic High quality leather - Features: Built-in pen holder, No slip design - Support Bluetooth-compatible connection and USB interface connection - Bluetooth-compatible keyboard connection method:1: Turn on the “on” button in the keyboard2: Press and hold the “connection” key on the keyboard for 2 seconds3: Turn on the Bluetooth-compatible device you need to connect to4: Find “Bluetooth 3.0 keyboard” in “my device” and click “connected”