Wirelessly control presentation slides up-down ; Build-in a laser pointer and a white LED flashlight Small USB size receiver takes up little space Operation distance up to 100 feet away True plug
Wirelessly control presentation slides up-down ; Build-in a laser pointer and a white LED flashlight Small USB size receiver takes up little space Operation distance up to 100 feet away True plug
Wirelessly control presentation slides up-down ; Build-in a laser pointer and a white LED flashlight Small USB size receiver takes up little space Operation distance up to 100 feet away True plug