wireless laser pointer

Specifications (1)wireless presenter with laser pointer for education (2)page up,page down (3)red laser pointer (4)RC distanca>10 m 1.Component Transmitter 1 Receiver 1 Battery 1 Manual 1 Bag 1 Box 1 2.Transmitter Function wireless presenter with laser pointer red laser pointer Laser Pointer:press the button to turn on;release to turn off. Page Up:support PPT,WORD,EXCEL,Internet Browser,Picture Browser,etc Page Down: support PPT,WORD,EXCEL,Internet Browser,Picture Browser,etc (remote control distance about 10 meters,a little difference in different enviroment.) 3.Receiver Function LED flicker:before receiving the transmitter signal. LED off:waiting for the transmitter signal LED on:receiving the transmitter signal USB flash:no memory/1GB/2GB/4GB 4.Battery 12V23A 1pc or AAA 1pc Change the battery when the laser pointer turns dark. 5.Dimension and Weight Transmitter: dimension:115*18*19mm weight:26g Receiver: dimension:7.2*2.1*0.8cm weight:13g Box: dimension:15.5*7.9*3.9cm weight:127g Catton(50pcs/ctn): dimension:40*33*21cm weight:8kg 6.Applications Teaching,Lecture,Meeting,Astronomers,Military,SOS Loge Printing or laser marking 7.Product Color stock:black,silver order:black, silver, white, red, blue, green, yellow etc. 8.Warranty This product is warranted for 1 year from the date of purchase.