Features:
Control the pace of your presentation easily. The controlling distance is up to 10 meter / 30 feet away.
Can built-in flash memory: up to 2G.
Multifunctional presenter: functions as a laser pointer， an optical mouse and keyboard etc.
Easy to use: It is USB plug-and-play. No driver required.
Save power design: The device will go to sleep mode if there is no operation for about 30 seconds.

Specifications:
Interface 1:? RF 2.4GHz
Control Distance: Up to 10 meters
Laser Distance: Up to 200 meters
Trackball Resolution: Up to 400 Dpi
Working Voltage: 3V (Presenter)
Max output: !#!lt!*!1mW(Class ii) or !#!lt!*!5mW(Class iii)(optional)
Power consumption:? Working mode !#!lt!*!100mA? Sleep mode !#!lt!*!10uA
Power supply:2 x AAA batteries（not included）
Wavelength: 650nm
Transmitter: 12.5 x 5.1 x 4.7 cm
USB receiver: 7.3 x 2.6 x 1.4 cm.

Package included:
1 x Transmitter
1 x USB Receiver
1 x USB Cable
1 x English User Manual

?