Description: Large button design makes you can accurately touch the correct button without looking, this pointer is plug-and-play, and has accurate and stable pointing. Featuring USB smart charging, this pointer has long battery life, it is still sensitive even for long-distance operation, and has strong compatibility. This pointer is made of PC. There are different sizes of B1 and B2. It is suitable for meeting, teaching and so on. Item Name: Presentation Pointer Material:PC Batteries: 200mAh BatteryIncluded) Working Current: 3.7V Sensing Distance: 100m Compatible System: for WINDOWS, for MAC os, for Linux, for Android Size: Black,B1: 13cmx2.1cmx1.25cm/5.12inx0.83inx0.49in Black,B2: 14cmx2.2cmx1.2cm/5.51inx0.87inx0.47in White,B1: 13cmx2.1cmx1.25cm/5.12inx0.83inx0.49in White,B2: 14cmx2.2cmx1.2cm/5.51inx0.87inx0.47in Pink,B1: 13cmx2.1cmx1.25cm/5.12inx0.83inx0.49in Pink,B2: 14cmx2.2cmx1.2cm/5.51inx0.87inx0.47in Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Shell material: B1 is arc square, top and bottom frosted surface, side smooth surface; B2 is square rounded corner frosted surface. Buttons: B1 has silicone buttons; B2 has ABS hard rubber buttons. B1 has two-pole switch, B2 has three-pole switch. B1 functions: page up and down pen, laser, one-click hyperlink, switch window, low battery reminder. B2 functions: P1 mode: page up and down pen, laser, one-key hyperlink, switch window, low battery reminder; P2 mode: previous song/following song, play/pause, volume increase and decrease, close window. Do not use the laser flip pen as a toy for children to play. Do not shoot people's eyes or look directly at the laser during operation. Non-professionals do not disassemble or repair, so as to avoid accidents. Package Includes: 1 X USB Charging Cable 1 X Receptor 1 X User Manual 1 X Presentation Pointer