Cupreous tube with high class paint Blue LED indicator light on transmitter. Infrared technology Functions: Laser pointer ,Page up/down,Blue LED Matching receivers can be built-in flash memory optional USB plug and play, no driver required Laser distance: up to 200m Control distance: 15 m Operation system: Windows98/2000/ME/XP/Linux/Mac OS/Vista Transmitter size: L=14.4cm, dia.=1.4cm Battery: AAA x 1 Qty:50pcs
