Metal detector,power consumption: maximum 270mW battery replacement reminder handheld metal detector for gold for iron for copper for silver.The high quality buzzer sounds crisp and loud and can be freely switched between sound alarm and vibration alarm.The charging port is reserved, and the instrument's self-contained rechargeable battery can be directly charged through the self-contained charger, saving energy and money.Easy to use, 3 speeds: switch key, sound alarm key, vibration alarm key, preset sensitivity, no need to adjust.Battery replacement reminder, when the battery is exhausted, the buzzer will keep ringing to remind you that the battery needs to be replaced.Durable, made of high quality ABS, not easy to damage, can detect all kinds of metal objects.The high-quality buzzer sounds crisp and loud and can be freely switched between sound alarm and vibration alarm.The charging port is reserved, and the instrument's self-contained rechargeable battery can be directly charged through the self-contained charger, saving energy and money.Easy to use, 3 speeds: switch buttonThe high-quality buzzer sounds crisp and loud, and can be freely switched between the sound alarm and the vibration alarm. The charging port is reserved, and the instrument's self-contained rechargeable battery can be directly charged through the stand-alone charger, which saves energy and money. Easy to use, 3 speeds: switch button, sound alarm button,