1. Portable with light weight, easy to carry. 2. Emergency activation, alarm suitable for joggers, elderly, disabled, night shift workers, people who live alone. 3. It's also a necessory supply for traveling, hiking and camping. 4. Keyring chain (Hand strap) and plug it , suitable for ages 8 and up. 5. Fit for student, jogger, ederly, kids, women, the night and night worker. 6. Warning: The alarm sound is very loud, never put the unit close to your ears.
