Features:-TransmitterAdjustable sensitivity, volume, tone and LED color.Press V for 5 seconds for On/Off.7 changeable LED color bite alarm.Press button S for 5 seconds to change LED light color.256 variable code enough to prevent interference from another angler.LED alarming signals with high output speaker.High visibility LED latching about 30 seconds.Built-in jack for your illuminated swinger of 2.5mm plug.Powered by a 9v battery(not included).-ReceiverOver 100m transmission range.3/4/6 different color LED light to match 3/4/6 different alarms.On/off, adjustable volume, vibration button.Vibration, LED alarming signals with high output speaker.Memory LED.Removable antenna.Powered by a 9v battery(not included).Portable zipper padded case stores all contents,convenient to carry around.