1)Two way (bidirectional) search for alarm, iphone and the kids, elder, pet, products (such as key, bag,
luggage and whatever easy to lose), when these apart a certain distance from the iphone, they will both ring.
 
2) According to your request, you would choose 0-30M as safe distance to search and anti lost.
 
3) Multi-voices alarm model (with vibration), the anti- lost alarm is good stuff for you when go outside with 
your kids,elder, pet and luggage.
 
4) One iphone can connected at most 4pcs Anti-lost alarm, that’s to say you can safeguard 4 things at the 
same time and also can take photo of each to differentiate.
 
5) Rechargeable by micro USB cable. Please charge for half an hour the first time you charge it.
 
6) Personalized time Settings: you can set the open time and close time of the Anti-lost alarm. 
 
7) Selfie Tap the camera icon to launch camera in the app. Press the button on the Swalle to trigger the phone take picture or video.