... Green Laser pointer)2. 3 phases switching, off/ Presentation/ Music (Media Player) 3. Optical Mouse( 360omove,use free)4. Phase 1 ... buttons: page up, down, left, right, F5, B,Esc and laser point ... , forward, backward, volume up and down, start count down time/Media Player6. Clock set ( Self-definite timing,Fixed timing alarm, count ...