Mice & Trackballs Note: only Bluetooth devices with version 4.0 and above are supported. 1:Mac needs to upgrade the system to a system above OSX10.11; set up a little-Bluetooth-wait for the search to touch the mouse-click the link. 2:Mac supports Bluetooth protocols above 4.0. (click Local-Click system report-Click hardware-Bluetooth-Bluetooth Core Specification: 4. 0 (0x6) for support. 3: unsupported devices: 3.0 Bluetooth version-Win7. 4: the product is a Bluetooth mouse and does not require an additional USB receiver. function: [thin and ultra-thin]: thin and lightweight design. Adopt ABS+PC material, do not occupy USB port when using. Lightweight design is the first choice for travel. [mute mouse button]: low decibel mute mouse button, suitable for libraries, conference rooms, coffee shops and other occasions. [easy connection]: the maximum connection distance can be up to 15 meters. You only need to pair with the device when you use it for the first time, and you only need to click the left or right mouse button for the second time. [touch scrolling] two-way touch scrolling to achieve smooth and intuitive navigation. Wirele technology: Bluetooth. Charging: type C. Wirele distance: 10-15 meters. Product size: 110-60-20 mm. Weight: 54 5g. Key number: 3. Resolution: 1200DPI. Material: ABS