Product name: wireless presenter Size:148*14.7mm Color:silver Battery:2 pcs AAA Laser light: green laser light Output power:classII<1mW&ClassIII<5mW Wavelength:532nm Logo:print available or engraved Control distance:over 15m Certificate:rohs. Fda& ce Features: 1.green laser pointer, page up and down 2.usb plug, no driver requested 3.system:windows98/2000/ME/XP/Linux/Mac os 4.it support word excel;powerpoint, website,ACDsee. Acrobat reader 5.it is used mostly in presebtation such as meeting,training,speech,teaching 6.infrared technology