Experiencing very low volume on zumo 550. Cant hear anything above 30mph with earplugs in. Have made both volume adjustments on the zumo to maximum levels. I am using a wired headset from my old SP 2610 connected via a 2.5mm to 3.5mm adaptor into the bike mount.
any ideas on a fix?
should I go the bluetooth route, eg scala rider?
is there another bluetooth helmet kit, ideally without a microphone, that works with the zumo?
any ideas on a fix?
should I go the bluetooth route, eg scala rider?
is there another bluetooth helmet kit, ideally without a microphone, that works with the zumo?

