Bluetooth wireless keyboard case fits iPad 11 2022/2018 and iPad 10.9 2021/2020. Built-in touchpad. Supports IOS, Windows and Android. Blueooth Solution: 3.0. Valid distance up to 10 meters. Standby time 180 days. Charges with micro USB port. Charging time 2.5 hours. Working time with touchpad on 75 hours, with touchpad off, 360 hours.