Product: R400 Laser Presentation Remote,
Features: For basic slide navigation, easy-to-find buttons by touch, smooth contours for comfort in hand,
Weight: 2.01 oz (57 g),
Receiver Weight: 0.21 oz (6 g),
Laser Class: Class 2 laser,
Max Output: Less than 1 mW,
Wavelength: 640–660 nm (red light),
Battery Type: 2 AAA batteries,
Battery Life (Laser Pointer): 20-hour maximum,
Battery Life (Presenter): 1050-hour maximum,
Wireless Technology: 2.4 GHz wireless technology,
Operating Distance: Approx. 32.81 ft (10 m) (may vary based on use and computing conditions).
