B066S Multi-function Ultra-thin Mini Wireless Three Fold Bluetooth Keyboard

1.Foldable and portable, maintain business-level efficiency on smartphones or tablets, and say goodbye to mobile phone screen keyboard. 2.Use with compatible Bluetooth enabled devices at home or on the go for Windows/Android/iOS. (for iOS requires more than 13.4.1) 3.Bluetooth keyboard compatible lithium-ion battery, which can work up to 48 hours (standby 560 hours) at a time. 4.Sleep time: 30 minutes 5.Activation mode: Key activation 6.Working distance: 10m 7.Lithium battery capacity: 140mAh 8.Operating voltage: 3.7V