Carp fishing blue BAT bite detector with protective shell

- Includes a protective shell
- Two AAA batteries (not included)
- On / Off: Press the power button and hold it down for three seconds.
- V "Volume": Scroll through the six volume settings, including silent mode.
- S “Sensitivity”: Scroll through the five options. When pressing the S button, the LED indicator will flash according to the level of sensitivity selected.
- N “Nightlight”: Hold down for three seconds to activate / deactivate the green nightlight.