Our key finder is very convenient for finding your items. Just press the button and follow the sound! You can make the product beeps to find your things with your phone's app, you can double-click the product's button to cause your phone to ring. The current position of the object can be checked on the mobile phone, and the last remaining position can be checked after disconnecting. If you lost your tracker, you can find it in 'Lost History'. Instruction manual attached.