1Physical laser remote control, local magnification, condensed light, digitallaser. 2Display the remaining time, keep abreast of the progress of the speech, timing vibration reminder. 3Meet the use of large spaces, 360 omnidirectional reception / 20m remote control / black screen. 4Low power consumption, suitable for LCD screens and projection screens of various sizes. 5Cmpatible for Windows 10/8/7/XP and for OS X 10.10 and above system, Chinese and English adaptive. Item Type:Presentation Clicker Material: ABS Shell Color: As Picture Shown Weight: Approx. 121.0g/4.3oz Battery: 2Pcs AAA Batteries (not Included) Receiver Connection Type: 2.4G Wireless Connection Cmpatible forWindows10/8/7/XP and for OS X 10.10 and above system Chinese and English Adaptive: running on an English system, the screen prompts are all in English, and even the prompt voice is in English. How to use: 1. Unplug the receiver 2. Insert the receiver into the USB port of the computer 3. Download and run the supporting software 4. Open the flip pen battery cover and install 2Pcs AAA batteries 5. Turn on the flip pen switch 1 x Manual 1 x Receiver 1 xPresentation Clicker 1 x Storage Bag Due to the lower system version for Windows 8/7/XP, some system compatibility problems may occur, so it is recommended that you use a higher version system.