Featuresr good tool for you wireless remote sense bite alarm kit including three transmitters with one receiver not only has sound and light alarm while fish bites but also send signal to over 100 meters away so you can walk away or have a rest carrying the receiver not afraid to miss hooked fishr r transmitterr 8 led direction of drop back setting sensitivity volume toner latching led with 30 second signal memoryr long press the button for distance test short press for choosing