emmiter:

1.spray water protected

2.including 1 memory LED

3.tone and volume control( 4 levels)

4.sensibility control( 4 levels)

5.memory function

6.plug socket for bite indicator

7.battery:9V6LR61

receiver:

1.three buttons

 2.battery:9V6LR61

wireless fishing bite alarm set-JHA527-4