3X(Use:Proctors< />Frequency:433 MHz< />Channel:1< />Wireless Communication:IR< />use for:for proctor< />is cusized:yes< />model number:-488E< />battery:not included< />fit for:for np905+np2000+L75+m420x p350x+P420X np50+np216+vt491+< />type:proctor < />Item Weight:.57.9g< />Size:.179 * 50 * 17mm< />Colour:Black < />Material:ABS< />Package Conten:< />1* )