KZ ZST
Technics EAH-AZ100
What Buyers Say
KZ ZST
These budget in-ear headphones deliver exceptional sound quality with deep bass and clear highs, earning high praise from music lovers. However, users consistently report a constant background hiss when powered and a poor microphone, making them unsuitable for calls or gaming. The build quality and comfort are generally well-regarded, though some find the fit bulky.
Pros
- Exceptional sound quality
- Deep and punchy bass
- Clear highs and mids
- Solid build quality
- Comfortable fit
Cons
- Constant background hiss when powered
- Poor microphone quality
- Uncomfortable for small ears
- No carrying case included
- Cable pulls head when snagged
Technics EAH-AZ100
The Technics EAH-AZ100 earbuds are overwhelmingly praised for their exceptional sound quality, with users highlighting deep bass, clear highs, and immersive audio. Comfort, battery life, and noise cancellation are also frequently commended, though some users note the price is high and volume could be louder. A few minor issues like Bluetooth LE disconnects and initial multi-device pairing were mentioned, but overall sentiment is very positive.
Pros
- Exceptional sound quality
- Deep immersive bass
- Effective noise cancellation
- Comfortable fit
- Excellent battery life
Cons
- High price point
- Limited maximum volume
- Bluetooth LE disconnects
- Initial multi-device pairing issues
- Plastic exterior
Scores
Specifications
| KZ ZST | Technics EAH-AZ100 | |
|---|---|---|
| Design | ||
| Form Factor | in-ear | in-ear |
| Wearing Style | — | true wireless |
| Ear Tips | S, M, L | 5 x Eartip Pairs |
| Weight | 0.06 kg | 0.05 kg★ |
| Audio | ||
| Driver Type | hybrid | dynamic |
| Driver Size | 10 mm | 10 mm |
| Drivers | 2★ | 1 |
| Freq Min | 20 Hz | 20 Hz |
| Freq Max | 20 kHz | 40 kHz★ |
| Impedance | 18 Ω | 16 Ω |
| Sensitivity | 106 dB★ | — |
| Hi-Res Audio | ✓ | ✓ |
| Codecs | KZ ZSN PRO in Ear Gaming Earphones, Hybrid Technology 1DD 1BA Drivers Wired Earbuds Comfortable Noise Cancelling Gaming Earbuds Headphones for Cell Phone Android Women Men Girl (Blue with Mic) | AAC, LC3, LDAC, SBC |
| Surround | — | Dolby Atmos |
| Noise Control | ||
| ANC | ✓ | ✓ |
| ANC Type | — | adaptive |
| Transparency | — | ✓★ |
| Connectivity | ||
| Wireless | ✗ | ✓★ |
| Bluetooth | — | 5.3★ |
| Profiles | — | AVRCP, A2DP, HSP, HFP, TMAP, PBP |
| Multipoint | — | ✓★ |
| Wired Connector | — | Bluetooth |
| Range | — | 10 m★ |
| Earbud Battery | ||
| Battery Life | — | 8 hrs★ |
| Charge Time | — | 2.5 hrs★ |
| Fast Charging | — | 15 min. for 90 min. playback |
| Charging | — | USB-C★ |
| Case Battery | ||
| Case Battery | — | 28 hrs★ |
| Case Charging | — | USB-C★ |
| Wireless Charging | — | ✓★ |
| Microphone | ||
| Microphone | ✓ | ✓ |
| Mic Count | — | 6★ |
| NC Mic | ✓ | ✓ |
| Features | ||
| Voice Assistant | — | Google Assistant, Siri |
| Touch Controls | ✓ | ✓ |
| App | — | Android & iOS |
| Volume Limiting | — | ✗ |
| Gaming Mode | ✓★ | ✗ |
| Bone Conduction | — | ✗ |
| Water Resistance | — | IPX4 |
Pros & Cons
KZ ZST
- Strong social proof (96th percentile)96th %ile
- Strong sound (91st percentile)91st %ile
- Strong user sentiment (81st percentile)81st %ile
- Strong anc (73rd percentile)
- Below average build (34th percentile)
Technics EAH-AZ100
- Strong connectivity (100th percentile)100th %ile
- Strong sound (99th percentile)99th %ile
- Strong mic (98th percentile)98th %ile
- Strong anc (97th percentile)97th %ile
Pricing
KZ ZST offers 5.8x better value for money
Verdict
Scores 100 overall, wins 7 of 7 usage categories and 14 of 40 specs.
