Features: 1) Super exquisite and fashion design 2) Radio frequency technology 3) Built-in flash memory is available 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 7) System: Windows 98 / 2000 / ME / XP Linux and Mac OS 8) USB plug and play, no driver required 9) Laser distance: >200m 10) Control distance: >30m 11) Battery: AAA x 2 Other features: 1) Receiver: receiver adopts 315MHz wireless technology, it will work with just inserting it in the USB interface, no need to download any driver program. It can also receive the operate instruction from the remote control 2) Remote control: it is small and portable to take with, owns functions of laser, multimedia, demonstration and controlling 3) Adopts 315MHz radio technology to practice wireless control within 25 to 30m 4) Adopts 315MHz radio receive and transmit equipment and the function to control the computer by overleaping obstructions which make the process of demonstration effortless and practical