DUAL MODE BLUETOOTH MOSUE-BT5.1+2.4G connection,easy switch to control two devices by click a button.It can connect one device through Bluetooth and the other through 2.4GHz USB receiver.Note:?Please turn on the "Assistive Touch" on iPad: Setting-Accessibility- Assistive Touch for an iPad usage.? WIDE COMPATIBILITY-Blutooth5.1 support Windows/Mac/Android/IOS system[Note:BT501 system Requirement:Windows 8.0 or above;IOS 13 or above.Please check or update the operating system before purchase] Metal Wheel&One CLICK TO RETURN DESKTOP-Special Home Button,Metal scale roller, wearable and durable, one-click return to the desktop, prevent voyeurism, protect personal privacy. BUILT-IN BATTERY AND AUTO ENERGY-SAVING-The mouse built-in rechargeable battery, with a charging cable. No need to change batteries.To saving power, the mouse will fall asleep after 10 minutes no-operation, it can be waken up by clicking any button. SLIENT BUTTON&3 ADJUSTABLE DPI-The small wireless mouse’s left/ right buttons use 300w mute buttons to reduce the click noise by more than 90%. Enjoy the sound of silence click, without the annoying click. Perfect for public places such as libraries, offices, coffee shops and other quiet occasions. There is no need to worry about disturbing others in any environment.