Specs:

Dimensions: 1.6 inches x 1.6 inches x 0.3 inches
Weight: 0.4 ounces
Color: Black
Material: ABS plastic
Features:

Bluetooth connectivity with a range of up to 100 feet
Integrated keyring hole for easy attachment
Find lost items using a smartphone app
Loud alarm to help locate misplaced objects
Long battery life with replaceable coin cell battery
Assembly:
No assembly required; simply attach to items and pair with your smartphone.

What's Included:

1 Bluetooth Tracker
1 Coin cell battery
1 Keyring
Compatible Device:
Compatible with iOS and Android smartphones via the dedicated app.