Wireless Presenter 03

Frequency 2400MHz - 2483MHz Input Power Two Alkaline AAA batteries Dimension(L*W*H) 130 x 38.2 x21.2 mm (5.1 x 1.5 x 0.8 inch) Weight 68g (2.39 ounces) Channel Number 16 ID Number Per Channel 35535 Interface USB 1.1 Wireless Range Works up to 100 ft (30 m) away from the USB receiver System Requirement Windows 98 SE , ME , 2000, XP , Vista Software or Drivers No software or drivers required Laser Semiconfuctor laser ( = 650 mm) Class2 Laser Output Power Max. 0.95 mW certifications CE. FCC. FDA. TELEC