
Yinyoo ZST
Score: 74/100
H Hifihear KZ ZSN PRO X
Score: 84/100Rankings

The KZ ZSN PRO X offers audiophile-level detail with a hybrid driver setup, solid metal build and a secure fit at a budget price. It lacks active noise cancellation and a built-in mic, and the proprietary cable connector may be inconvenient for some users.

The YINYOO Easy KZ ZST is a budget-friendly hybrid IEM that combines a balanced armature and a dynamic driver for lively, detailed sound. Its ergonomic memory-wire design, multiple silicone tip sizes, and detachable cable provide comfort and versatility, while the lack of wireless features and occasional bass distortion keep it in the entry-level segment.
| Attribute | ![]() | ![]() |
|---|---|---|
10 mmbest | 10 mmbest | |
20 Hzbest | 7 Hz | |
20,000 Hz | 40,000 Hzbest | |
106 dB | 112 dBbest | |
18 Ω | 25 Ωbest | |
| ↓ lower better | 20 gbest | 50 g |
12 monthsbest | 12 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(4) | ||
Frequency Response (Low) (Hz) | 20 Hz | 7 Hz |
Frequency Response (High) (Hz) | 20000 Hz | 40000 Hz |
Sensitivity (dB) | 106 dB | 112 dB |
Impedance (Ω) | 18 Ω | 25 Ω |
Build & Design(2) | ||
Weight (g) | 20 g | 50 g |
Ear Tip Sizes | S/M/L | S,M,L |
Battery & Power(1) | ||
Charging Port Type | 3.5 mm | 3.5mm |


Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the KZ ZST for its rich, energetic audio performance, noting the hybrid driver setup provides clear separation and a lively soundstage, while highlighting its ergonomic design and exceptional value.
Everyday users consistently commend the earphones for impressive sound quality, comfortable fit, and the convenience of a detachable cable, but mention occasional bass distortion at high volume, stiffness of the stock cable, and confusion over mic-less versions.

Professional reviewers praise the ZSN PRO X for delivering audiophile-level detail and a balanced sound signature at a budget price, highlighting its strong bass, clear mids, and refined treble.
Everyday users overwhelmingly commend the earphones for their price-to-performance ratio, comfort, and sound clarity, while noting cable durability issues and the absence of a case.
“The sound quality is amazing, and the noise cancellation is great.”

“Incredibly comfortable for long sessions-perfect for work and travel.”

“The removable cable is a game-changer; I upgraded to a silver cable and the sound improved noticeably.”


