🍀UTRA BRIGHT COLLARS: This lighted collar can keep dog or cat visible in the darkness with led& TPU light-guiding tube, also with reflective nylon stitches. Its visible distance closes to 500 meters. Vehicles can see your dog in advance with the bright collar, which will protect dogs or cats from danger. 🍀USB RECHARGEABLE COLLAR FOR DOGS：This reflective dog collar can be charged by matched USB cable when use up, no need to replace the batteries and no extra cost for the battery, energy-saving& environmental-friendly! 🍀ADJUSTABLE DOG COLLAR: This glowing dog collar fit several pet dogs & cats which have different sizes, and meet with diversified needs. If you received it too big for your dogs, there is a tip for you: that you can pull out the battery case& TPU tubes, and cut the transparent TPU tube shorter( until fit for your dogs), then insert it back to the nylon webbing. Note: if you have a long-hair pet, please remain a bit longer in case occultation of its hair. 🍀PERSONALIZED FLASHING MODES: This glowing dog collar has three flashing modes: quick flashing-slowing flashing-stable flashing. Change the flash modes by the same button- clicking the plastic release buckle. Note: If you have a camping time with your dogs, please choose the slow blinking mode or quick blinking mode, which will ensure the longer glowing time when energy-saving occasion, and keep your dogs safe.