I’m the original owner of this Zoom ZHA‑4. It’s in great condition with light, normal wear from desktop use. All four channels work properly, knobs and mute buttons feel normal, and USB‑C power has been reliable.
Like most small headphone amps, powering it directly from a computer USB port can introduce noise. I always used a clean 5V 1A adapter, AA batteries, or a power bank for best performance.
No cracks, dents, or issues. Just normal cosmetic signs from being on a desk.
Included:
-Zoom ZHA‑4 headphone amp
-Short angled Hosa 3.5mm cable