Features: 1) Cupreous tube with high class rubber paint 2) Super smooth and comfortable 3) IR technology 4) Tailored as a convenient handy-tool for presentations, teachings, meetings, speeches, trainings 5) Consists of a remote control, a laser pointer 6) Functions: a) Laser pointer function b) Page up / down function c) Built-in flash memory available (to be used with our V-150 receiver) 7) System: Windows 98 / 2000 / ME / XP, Linux & Mac OS 8) USB plug and play, no driver required 9) Laser distance: >200m 10) Control distance: >15m 11) Dimensions (H x D): 11.9 x 1.4cm 12) Transmitter weight: 60g (including batteries) 13) Battery: LR44 x 3pcs