Apr 10, 2017 at 5:12 PM Post #16 of 17 florencephile New Head-Fier Joined Mar 7, 2017 Posts 23 Likes 10 should work fine, but maybe someone with one can confirm.
Apr 14, 2017 at 2:46 AM Post #17 of 17 Toothless 100+ Head-Fier Joined Oct 23, 2014 Posts 159 Likes 22 I emailed Fiio and they confirm the E7 would still work without the battery.