DS-107 USB Presentation Red Laser Light Pointer Pen Remote Contol Lecture 

Features:

USB interface,plug and play,no need to use drivers.
Laser remote control pen with 2.4G radio technology, the control distance is up to 15 meters.
RF technology without direction restrictions, so you can freely flip pages of electronic document and demonstrate.
Applications:For computer and projectors demonstrations.Perfect for teachers, training lecturers and business people to give presentation, lectures, conferencess.

Specifications:

Emitter Parameters:
Product Name: Laser Pointer
Model:DS-107
Size: 140mm x 22.7mm x 22.7mm
Material: Plastic
Color: Black
Remote technology: RF2.4GHz / 433MHz
Control distance: 15M
Laser distance: more than 200m
Battery: one AAA battery(not included)
Work voltage: 1.5V
Laser wavelength: 650nm

USB Receiver Parameters:
Operating system: Windows98, SE, ME, 2000, XP, Mac OS, Linux, Windows Vista, Win7, Win8, Win10
Compatibility interface: USB1.1 is compatible with USB 2.0
Work voltage: total USB power supply(4.5-5.5V)
Size: 58mm x 17mm x 12mm

Safety instruction:

Laser is detrimental to eyes,so please don't point it to people.
Don't point laser to mirror or other objects' surface with high reflection.
Please don't let children play this product.

Package included:

1 x Laser Pointer Light (Battery is not included)
1 x USB Receiver
1 x User Manual