wireless presenter with laser pointer

Functions:
-Laser pointer
-Page up/down
-Wireless mouse
-PowerPoint display and blank screen
-Clock
-Self-definite timing alarm
-Fixed timing alarm
-Second counter
-Built-in flash memory optional

Technical Parameter:

Transmitter
Control Distance:10 meters/30 feets
Battery: AAA x 2
Working Voltage:2.4-3.5V
Wireless method: RF
Frequency:433.92Hz
Laser Power:<1mW or <5mW
Wavelength:630-680nm
Dimension: 120x30x13mm
Weight:30g

USB Receiver
Hardware: IBMPC/AC&Notebook, Apple
Operating System: Windows98/Me/2000/xp/Linux/Mac
USB Version: USB1.1 compatible USB2.0
Working Voltage: USB cable supply(4.5-5.5V)
Wireless receiving method: RF
Frequency:433.92Hz
Receiver Sensitivity:-100dbm
Dimension:71x26x14.5mm
Weight:10g

welcome you to contact me by email.(yolanda at vson dot net dot cn).