Q: Have you shortened it & how did you do it? A: Yes, There's a ''CUT'' label near at the end of one side of the collar, the LED are in the part where you attach the collar ends. The clear plastic collar carries the light but there are no actual lights within it. When you shortened it, you'd better measured your dog neck and cut the right length and that's it then put it back or inserted it again!

Q: Is this water resistant? A: Yes, this collar is water resistant design can be walking in the rain, snowy or other bad weather. But it's best not to stay in the water for a long time, such as swimming. Q: How far away can you see this light?

A: This Led Collar is so bright that you can see the dog at least 400 yards. But I wouldn't advise him to leave you so far. Q: Can you turn them off? A: Yes!

There is a button on the collar. It has 4 settings: fast blink, slow blink, steady glow, off. You have to cycle through them but it's not too difficult. Specifications:

• Material: TPU tube; Length: 70cm.
• Available led color: Red& Pink& Green& Blue& Orange.
• Flash modes: quick blinking-slow blinking-steady glow-off.
• Battery use time: Charge 2 hours, use 8-10 hours for slow flash; 6-8 hours for quick flash, 2-3 hours for steady glow. Package Included: 1 Illumifun Led Dog Collar 1 MINI USB cable