The Stanley Pocket Laser Distance Measure has a one button operation for point and click measurement function. It is ultra-compact and lightweight for ease of use and convenience. It runs on internal LI-ION battery for longer runtime so no need to change batteries (approx. 1000 measurements on a full charge), USB charging is available. The measure has a black screen with white letters for better visibility in brighter conditions, It is IP54 rated for better protection against dust and water splash. One button operation for point and click measurement function Ultra-compact and lightweight Runs on internal LI-ION battery for longer runtime, no need to change batteries (approx. 1000 measurements on a full charge USB charging available Black screen with white letters for better visibility in brighter conditions IP54 rated for better protection against dust and water splash Working Range: 12m Laser Accuracy: +/- 6mm @ 10m Provides distance calculation Laser Beam Colour: Red