AEI EasyFind Key Tracker

Easyfind technology sends a radio signal through walls and floors to activate an alarm on the key chain, locating lost keys up to 25 metres away.
The handy sized receiver unit can be connected directly to any key chain quickly and easily.

Battery- Key Ring Transmitter A27
Frequency 434MHz
Battery-Key Ring Receiver CR2032
Range Maximum 25 metres depending on environment.