seriousdetecting.comAnswer
Apr 22, 2026 - 03:38 PM
Yes — most metal detectors draw significant power through the speaker driver. When headphones are connected, many machines power down the speaker and route audio through the headphone output at lower power draw. The difference varies by machine but can be meaningful over a full day of detecting. This is particularly relevant for machines with built-in lithium batteries where total session time matters. Headphones that connect through the machine's wireless module rather than a physical jack may not produce the same battery saving, as the wireless transmitter is still running.
