Bluetooth Square Key Finder Tracker

This Smart Bluetooth 4.0 Tracker is made of ABS and also works as a selfie remote. It can chain your easy-lost & valuable belongings(such as mobile phone, keys, pets, wallet, etc.) together and work with smart phone to realize the function of anti-lost reminders and search. Its button battery can be easily purchased in major markets and stores. The effective use distance of the anti-lost device can reach 15 meters in an open area. Complies with FCC. 1.46" L x 1.46" W x 0.25" Thick