System requirements: for-macOS (10.11) and above; 8 and above. Connect to for-:1: You need to take out the 2.4G USB receiver in the package and plug it into the for- host; the trackpad turns on the switch (in the direction of the charging port).2: You can also use a type-c cable to connect the trackpad and .3: Bluetooth link to for-macOS (only touch is supported, multi-finger operation is not supported.) for-MacOS (Gestures) Single finger: click - select/double click - open Double finger: zoom in - zoom out - rotate picture/flip page - switch page - display notification center Three-finger text/drag page Four fingers: Open the dispatch center - desktop switching - display the specified window - desktop switching Five fingers open the launchpad - show the desktop Connect to the window:1: Bluetooth - turn on the switch and press the wake button. Bluetooth search link trackpad.2: You can also use a type-c cable connection.3: You can also use a 2.4G USB receiver cable to connect. (gesture) Single finger: click - select/double click - drag file Double Finger: Directional Movement/Zoom Out - Zoom In Three fingers: open the task interface/display the desktop/switch the application Colour:Black Material:ABS Package Contents: 1 x touchpad 1 x 2.4G USB receiver 1 x type-c charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.