and the headphones auto-power off after 60 minutes of non-use to conserve battery when you take breaks

or vice versa

Measurement: 8

Installation

Makro C28 11" Search Coil Cover for CF77 Coin Finder dry-wash and the headphones auto-power offYour Makro CF77's 11" search coil is one of its most vulnerable components, constantly scraping against rocks, roots, and rough ground. The C28 coil cover acts as a protective barrier that prevents costly coil damage while maintaining full detection performance. Key Protection Features Prevents coil damage from rocks, roots, and abrasive surfaces during detecting Maintains detection depth thin design doesn't interfere with electromagnetic field