laser pen

Product Description

FUNCTION DESCRIPTION 1)Laser Button: press the laser , a red laser light will shot out from the front of pointer. 2)Up Button: press it and release , the page or line will turn up to the prior page.Press it without release , the page or line will turn up continuously. Release the key, the page stop turning up. 3)Down Button: press it and release , the page or line will turn down to the next page.Press it without release , the page or line will turn down continuously. Release the key, the page stop turning down. 4)Shift Button: press the , the up and down function will switch from page to line , press the again, the up and down function will switch from line to page back. 5)Screen Black Button: when you show PPT, press this , the display will become black, press it again, the display will become normal. 6) Built-in memory optional<1GB*8GB>