*Prices are changeable according to different demands, exchange rates, and print design.
This is one drag four anti-loss devices. How to use: there are four buttons of different colors on the remote control, corresponding to four receivers of different colors. Hang the object you want to find together with the receiver. Press the button on the remote control, the receiver of the corresponding color emits the sound of dropping. Search your object according to the sound. The indoor distance is 10-15 meters, and the outdoor distance can reach 40 meters. It's convenient for us to find small things at home and office, even for the elderly.