First button click: 5mW red lase - Second button click: White LED light - Money Detector LED light - Powered by 3 x AG13 or 3 x LR44 batteries (included) Dimensions: 2.48 in x 0.51 in x 0.51 in<img src="http://112.74.112.28/down/products/210012/210012_000.jpg" noproxy>