The key finder F4 is a smart and tiny tracking device; it is developed based on a new kind of Bluetooth radio system (Low energy 4.0 technology). The F4 not only help you to find your stuff where it is, but also help  you to keep your stuff never lose again.

It is easy to be attached to your wallets, bags, car keys, remotes and other stuff.

FEATURES- Find & anti-lost function

- LED and buzzer indication

- Replaceable coin battery

- External ON/OFF push button to save the battery lifetime

- Ultra-low power consumption chipset nRF51822 with ARM core

- Easy to print a customization Logo/branding on the case

- Ultra thin Portable device, keychain and neck string available for

TURN ON/OFF Key Finder

Turn ON F4:

1) Press the button (at the center of top cover of beacon) and keep holding 5 to 10 seconds;

2) Then the Blue LED will be light on 5 seconds then off; it means that the beacon start broadcasting;

Turn OFF F4:

1) Press the button (at the center of top cover of beacon) and keep holding 5 to 10 seconds;

2) Then the Blue LED will flash 5 times then off; it means that the beacon is off and stops broadcasting;

ELECTRONIC PARAMETERS