FLASHING MODES - At the easy click of a button, you can choose your preferred option of fast flash, slow flash, or constant light - Allowing you to see your dog at night in the mode that best suits. Simply slip it over your pets neck and you'll be able to see them running around on your late night, dark outings! Not only that, but Motorists, Walkers and Runners will be able to spot your pooch much faster, we could be a real life saver and make all the differenceEASY TO USE: You don't need to snip through any wires - All the electronics are concealed in the housing of the accessory with the on-off switch, whilst the light is carried by a clear plastic optic cable making it super easy to adjust to the correct size for your pet without fear of cutting through the wire by mistake - Not only does this make it so simple to use, but it allows you to snip the correct size for your small, medium, large or even extra large dog!SUPER FAST CHARGE - Our USB Collar will charge in as little as 2 hours and requires NO Batteries. The featured high power F5 LED lights glow so bright that you can see your dog, cat or other pet from as far as 0.5km for up to 4 hours of continuous light, 6-8 hours of flashing light, or 8-10 hours on slow flash from one single charge!EASY TO CLEAN - Made from smooth hygienic plastic, our mega bright collar is lightly showerproof and so easy to keep clean. You won't have to worry about a few drops of rain or a bit of mud, and that certainly won't stop your beloved dog from having fun!100% GUARANTEE - We are a UK based company and our aim is to provide our customers with the best products. If you have any questions you can easily get in touch with us. We offer a HASSLE FREE 100% Guarantee so if you are not 100% satisfied with the product, please contact us to arrange a return and we will offer you an exchange or full refund. We want what is best for our beloved pets and customers.