Technics EAH-AZ100
Sennheiser CX 300S Black
What Buyers Say
Technics EAH-AZ100
Users are overwhelmingly positive about the Technics EAH-AZ100 earbuds, praising the exceptional sound quality, especially with LDAC and Dolby Atmos, and the surprisingly effective AI-powered call noise cancellation that blocks out background noise like screaming kids or car washes. Comfort, customization via the app, and solid battery life are also highlighted. The only potential downside mentioned is the high price, but most feel the premium features justify the cost.
Pros
- Exceptional sound quality with LDAC
- AI-powered call noise cancellation
- Comfortable fit for long wear
- Customizable EQ via app
- Solid battery life
Cons
- High price point
- ANC slightly weaker than AZ80
Sennheiser CX 300S Black
The Sennheiser CX 300S earbuds receive mostly positive feedback for their clear, balanced sound quality and sturdy build, with many users praising the tangle-free cord and comfortable fit. However, several reviews highlight durability issues, including the earbuds detaching from the housing or silicon tips falling off, and one user experienced a split housing after six months. While the audio performance is widely appreciated, concerns about long-term reliability and a few reports of poor customer service temper the overall enthusiasm.
Pros
- Clear balanced sound
- Sturdy build quality
- Tangle-free cord
- Comfortable fit
- Good value for money
Cons
- Durability concerns (earbud detach)
- Silicon tips falling off
- Inconsistent bass response
- Housing splitting after months
- Poor customer service/warranty
Scores
Specifications
| Technics EAH-AZ100 | Sennheiser CX 300S Black | |
|---|---|---|
| Design | ||
| Form Factor | in-ear | in-ear |
| Wearing Style | true wireless | in-ear |
| Ear Tips | 5 x Eartip Pairs | XS, S, M, L |
| Weight | 0.05 kg | 0.01 kg★ |
| Audio | ||
| Driver Type | dynamic | — |
| Driver Size | 10 mm★ | — |
| Drivers | 1★ | — |
| Freq Min | 20 Hz | 17 Hz★ |
| Freq Max | 40 kHz★ | 21 kHz |
| Impedance | 16 Ω | 18 Ω |
| Sensitivity | — | 118 dB★ |
| Hi-Res Audio | ✓★ | — |
| Codecs | 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 | 3.5mm |
| 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★ | proprietary |
| Case Battery | ||
| Case Battery | 28 hrs★ | — |
| Case Charging | USB-C★ | proprietary |
| 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
Technics EAH-AZ100
- Strong connectivity (100th percentile)100th %ile
- Strong sound (99th percentile)99th %ile
- Strong mic (97th percentile)97th %ile
- Strong anc (97th percentile)97th %ile
Sennheiser CX 300S Black
- Strong comfort (95th percentile)95th %ile
- Strong social proof (73rd percentile)
- Strong sound (68th percentile)
- Below average user sentiment (21st percentile)
- Below average build (34th percentile)
Verdict
Scores 100 overall, wins 7 of 7 usage categories and 17 of 40 specs.