Features and specifications: 1) New design 2) Cupreous tube with very nice paint 3) IR technology 4) Built-in flash memory available by customzie (64 / 128 / 256 / 512 / 1024MB) 5) Tailored as a convenient handy-tool for presentations, teachings, meetings, speeches, trainings 6) Consists of a remote control, a laser pointer 7) Functions: a) Laser pointer function b) Page up/down function c) Blank screen function d) Built-in flash memory available (to be used with our V-150 receiver) 8) System: Windows 98 / 2000 / ME / XP Linux & Mac OS 9) USB plug and play, no driver required 10) Laser distance: >200m 11) Control distance: >15m 12) Dimensions (H x Φ): 13.8 x 1.4cm 13) Transmitter weight: 68g (including batteries) 14) Battery: AAA x 1pc 15) Chinese Patent No.: 200530063020.5