Description:Wireless remote sense bite alarm kit not only has sound and light alarm while fish bites, and can also send signal to over one hundred meters away, so you can walk away or have a rest carrying the receiver, not afraid to miss hooked fish. This creates more free space for fishermen, a business activity and recreational fishing combination.Specifications:Color: BlackMaterial: ABSPackage Size: about 27.5 x 19.5 x 6cmAlarm Size: about 11 x 5 x 4cmAlarm thread diameter: 9.34mmAlarm working power supply: 6F22 9V Indicator light: 2 x Blue LEDButtons: 4Speakers includedFeatures:3 levels of sensitivity5 levels of tone5 levels of volumeWith 2.38mm jack for hanger indicatorPackage Included:1 x Bite Alarm Set (3 PCS)In original packageNote: The product does not include batteries, and it needs one 9V battery for yourself..