You live on a golf course and like to take walks in the evening with your dogs. Now that it gets dark by 5pm, your wanted something to help you keep track of them off-leash. You live in a high traffic area and you feel much safer on late night walks with the high visibility of these collars please recommended them to your other dog owner friends You live on acreage so your dogs are often off leash unlike subdivision dogs. At night, walking to the lake or allowing them to do their business, you would leash them. This inexpensive little night light has changed all that. What kind of collar does your dog need? Durable and Safety material High quality silicone collar light guiding is better that nylon dog collar, very soft; comfortable, also lightweight; adjustable. Water resistant It is not waterproof, only water resistant, means that could work in wet grass or lightly rain, but could not use in dogs swimming. Fully USB Rechargeable No need to replace battery, Micro USB port recharge full only need 2 hours for 4-6 hours using. One Size Fits All Our led dog collar can be cutted any length by scissors to fit your pet. How to cut the collar to fit your pet: Make sure the collar is off before cutting Measure your pets length by a soft tape measurer or string Cut the flash collar which has a SCISSORS mark. Each LED is grounded at its soldered point and you can cut between two LED lights. USB Rechargeable Rechargeable via Micro USB - Can be charged via Phone Chargers, Laptops, PC's, Tablets, Smart TV's Mains USB Power Adapters(Micro USB cable included) 3 Light Settings It has three lighting options to choose from. Slow flash Quick flash Steady glow Led High Visible It's so bright that improves your dog visibility and safety at night. And its 2 modes light of this glowing dog collar Up to 500m Warmly note: Please keep the rechargeable dog collar way from fire.