[UTRA BRIGHT COLLARS: This lighted collar can keep your dog or cat visible & safe 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. USB RECHARGEABLE COLLAR FOR DOGS：This glow 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! PERSONALIZED FLASHING MODES: This lighted dog collar has 4 available colors and two flashing modes: quick flashing-stable flashing. Change the flash modes by clicking the plastic release buckle. SPECIAL SIZE FOR EXTRA SMALL DOGS: Many dog owners mentioned that there is no led collar small enough for their small dogs in the markets for like chihuahua poodles or cats then this glowing small led collar is coming out Its whole length is 12inch also fully adjustable.]