HIGH VISIBILITY: This collar is designed to improve your dog's walking experience during the night walks. Your dog will be highly visible which means it is much easier to spot in the dark as they will be able to clearly see your dog from a distance.
GREAT PERFORMANCE: The USB Rechargeable battery provides unrivaled performance, the charging cable included can be used in any USB port to give you hours of use. Not only does this save you money in the long term, but it is also more eco-friendly! 
EASY TO USE: Single click selection of 3 different modes; FAST FLASH, STEADY FLASH & CONSTANT. The collar is fully adjustable to fit almost any size along with a quick release buckle and silicone protected charging port to prevent damage. 
Specifications: 
XS: 11.2-15.2inch Neck, 0.8 inch Width, 16.4 inch Full Length, 1.2oz Weight
S: 13.6-16.4inch Neck, 1.0 inch Width, 17.6 inch Full Length, 1.7oz Weight
M: 14.8-18.4inch Neck, 1.0 inch Width, 20 inch Full Length, 1.9oz Weight
L: 16.4-20.8inch Neck, 1.0 inch Width,  22.4 inch Full Length, 2.0oz Weight
XL: 16.8-22.4inch Neck, 1.0 inch Width, 24 inch Full Length, 2.1oz Weight