You can associate multiple Smart Proximity Sensors and assign them to your keys, your bags, your car or your children. You are notified when you are away from them or you can ring them to locate them easily. Be reassured by being alerted when your child comes home. Place the tracker on your keys or on the kids's bag and know immediately when they leave the area of your phone.

Specifications

General
   Product Type:  Wireless security tag
   Intended for:  Cellular phone, digital player, tablet
   Wireless Interface:  Bluetooth 4.0
   Max Operating Distance:  50 m
   Package Content:  CR2032 battery, wireless security tag
   Width:  1.4 in
   Depth:  0.3 in
   Height:  1.4 in
   Weight:  0.35 oz

Battery
   Form Factor:  CR2032
   Run Time (Up To):  6 months