... :Fishing Annunciator ·-Size: 9*5*4 cm Fishing Annunciator ·-Press on/off, the right light flickers, after flickering, turn ... on power supply, press it again, the right light flicker, after flickering, turn off ... volumeFishing Annunciator ·-Tone: change of tone can be adjusted, press it , change toneFishing Annunciator ·-Battery specification is as follows: ...