• It works effectively when you use it to switch PPT
• More than 20m wireless control range with no lag, freeing you from the constraint of the computer, move freely around the room
• The magnetic USB receiver can be stored in the pointer, convenient to take out and put back, not easy to lose
• Wide compatibility, compatible with Android, Windows, for Mac OS, for Linux
• Compact size, light in weight, easy to hold in hand

Specification:

• Size: 142*18.6*14mm
• Technology: Radio Frequency
• Frequency: RF 2.4GHz
• Max Output: less than 12mW
• Wireless Distance: >20m
• Laser wavelength: 650nanometre
• Laser: 3R
• Battery: 1xAAA Battery (not included)