High Quality: Firmness nylon cable can withstand strong tension; usb charge is convenient and environmental to rechargeable; Led light is efficient to last flashing for long time; reflective stripe enhanced brightness.
Multifunction Flashing: There are three models flashing. First press is rapid flashing, second press is slow flashing, third press is steady flashing, forth press is turn off.
Charge Advantage: About 2 hours for usb charge, it can last about 7-8 hours steady flashing. You can connect more devices like tablets, laptops, PC's, smart TV's, games consoles & phone chargers to charge.
Adjustable Size: M(43-49cm/16.93-19.30inch), L(52-59cm/20.47-23.23inch).
Waterproof Function: Collar can be used in raining days.(Importantly don't soak for water directly)