1. LED Key-chain lights for pet is used as a Flashing Pet Necklace , which is hung
    on the neck of the pets .
2. Small and novel , powered by two CR927 lithium batteries .
3. Can flash in three flashing styles : fast-flashng , slow-flashing and stay on
4. Many colors for the LED lights are available 
5. Waterproof , it's the best partner for pets .