Advanced technology of highlighting, magnification, give you a superior presenting experience like never before. Presentation mouse also combines the functions of mouse-like wireless cursor control (to play video, open links etc) . No need to download but install software, wireless presenter remote has accompanied software in the extra TF card in the usb dongle, click the then switch on and ready to go (On , requires a few more steps). Presentation mouse also combines the functions of mouse-like wireless cursor control (to play video, open links etc.), anti-lost reminder, timer, switch windows, full/ black screen, page up, page down. ANTI-LOST & TIMER FUNCTION: With initiative anit-lost function. Built in timer efforts to present without concern about presentation timing. Vibrates in your hand makes for silent awareness of time (max time: 199min); Wireless control range: 50ft-65ft Item type: Mouse-like Wireless Cursor Control: It can as left button on mouse, to play video, open links including hyperlinks etc. Silent Awareness of Time: Built in timer efforts to no concern about presentation timing. Vibrates in your hand makes silent awareness of time (max time: 199min) U-Disk Function: TF card safely storaged in USB, which carrry the software therefore without need to install software, it can also be served as a U-disk with a capacity of 128M, you could change it with another TF card, just copy the software from it Accompanied Setting APP: Click the , the app will show up, then you can set the brightness of background for spot lamp, color of digital laser, timer, turn on/off for anti-lost function, auto turn-on, etc. You can even read the electronic instruction on it. Piano Lacquer Material: Made of superior piano lacquer material, bring you an fee for its appearance as its functions Ergonomic Design Small but perfect size, super comfortable feeling holding in hand Colour:Gray Material:plastic Package Contents: 1 * Wireless Page Turner Presenter 1 * USB Cable 1 * Receiver 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.