For slide and film presentations overhead and data 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 bright light dot is clearly visible in daylight - Safety Class 2 - Range approx. 150 m (165 yd.)- Batteries included (2 x 1.5 V AAA-type)