This compact and versatile safety and locator light can be used for everything from finding hounds during night hunts to providing added visibility - and peace of mind - during evening strolls with canine companions. The Locator Beacon provides up to 250 hours of on-time and can be set to either constant ON or FLASHING. The light includes a handy carabiner clip for attaching to a collar D-Ring backpack strap belt loop or any collar strap up to 1 inch wide.Features:-Range - Bright long-range light-Waterproof and submersible-Batteries - Uses 2 replaceable CR2032 batteries-Battery Life - 250 hours-Changes from solid to blinking with the press of a button-Fits both 1 inch and 3/4 inch collar straps-Carabiner included for easy attachment anywhere-Available in blue red white green or yellowContents:-Locator Beacon-Collar Strap Adjuster-Carabiner-(2) CR2032 Batteries