Hawke Frontier LRF binoculars use high light transmission optics and a red coloured OLED display to make the view to your target clearer than ever before. Frontier LRF Binoculars are designed to deliver highly accurate distance measurements with the press of a button. They are ergonomically constructed to fit comfortably in your hand with easy access to both of the control buttons. Its range finding capabilities include: Distance, Rain, Hunt, Near, Horizontal Distance and Angle modes. The display brightness can be manually adjusted between 6 levels of brightness. The LRF requires a 3V CR2 battery and will automatically turn off after 15 seconds of no operation to save power.