... Small size,easy use; 3),Best quality,Lowest price; Remote Key finder KF-002T1 GIFT PROMOTION How to Use? Match: ... "On" Position,it will beep constantly("dee…dee..."),and push the button press here on the card,keychain ... push the button "press here" on the card,and the keychain will sound alarm within 1 second,alarm ... will last for 4 seconds and then stop. Receiver: Size:4.5*2.8 ...