For beamer presentations, slide, film and overhead projecting, screen presentations and non-contact pointing in research, medicine and industry. Sturdy black all-metal pen-shape housing. 
Length: approx. 140 mm (5.5 in.) 

The red bright light dot is clearly visible in daylight. 

Wave length 635-670 nm
output power < 1 mW, safety class 2.

Range approx. 150 m (165 yd.). 

Batteries included (2 x 1.5 V AAA-type)

** Note; Where applicable - All Kaiser items supplied with UK plug.