Whizzer Haydn A15 Pro main unit and cable only

Whizzer Haydn A15 Pro. Main unit and cable only. Everything shown in the photos is included.

As this is a somewhat niche and audiophile-oriented earphone, I'll provide a brief explanation. It's a 1DD (single dynamic driver) earphone with a beryllium-coated diaphragm. Based on its texture and weight, the housing is likely made of stainless steel.

When I first unboxed it, the sound was piercingly bright, making me suspect it was defective. However, after several hundred hours of burn-in, it started producing a proper sound.

Its characteristics are the fast and beautiful mid-high frequencies unique to beryllium diaphragms. Vocals sound truly enchanting and clear.
On the other hand, while the bass is present, it might be due to my ears or the difficulty in finding the optimal ear tips, but I perceive it as quite high-pitched. I sometimes listened with EQ adjustments depending on the music source. I believe ear tips that reach deeper into the ear canal or foam ear tips would be suitable.

Furthermore, its efficiency is quite low. With a smartphone, you'll need to turn the volume close to maximum to listen comfortably. I recommend using a DAP (Digital Audio Player) or a portable amplifier, preferably one with good driving power.

As described, these are rather challenging earphones. They likely still have untapped potential, but due to ear compatibility issues, I've found myself using them less frequently. I'm offering them to someone who is confident they can bring out their full capabilities.