Nothing Buds 2
Sennheiser IE 100 Pro 509171
What Buyers Say
Nothing Buds 2
The CMF Buds 2 are widely praised for delivering excellent sound quality, effective noise cancellation, and a comfortable fit at an affordable price. Users highlight the rich bass, clear vocals, and solid ANC performance that rivals more expensive models. While some note the bass can be slightly overpowering and the touch controls have limited customization, the overall value is considered outstanding. The long battery life, USB-C charging, and premium build further cement these as a top budget choice.
Pros
- Excellent sound quality with rich bass
- Effective noise cancellation for the price
- Comfortable and secure fit
- Long battery life with USB-C charging
- Premium build and design
Cons
- Bass can be slightly overpowering
- Limited touch control customization
- Case lacks functional dial
- Case is somewhat bulky
- No Google Fast Pair support
Sennheiser IE 100 Pro 509171
The Sennheiser IE 100 Pro earphones receive generally positive feedback for their sound quality, comfort, and value for money, especially in the entry-level pro audio segment. However, several users report issues with the proprietary connector, awkward button placement, and one case of left earbud failure. The included Bluetooth adapter is seen as a convenient bonus but degrades audio quality noticeably compared to wired use.
Pros
- Great sound quality
- Comfortable and lightweight fit
- Good value for money
- Excellent noise isolation
- Wired and wireless options included
Cons
- Proprietary connector limits cable options
- Awkward button placement
- Left earbud failure reported
- Bluetooth adapter reduces sound quality
- No battery level indicator
Scores
Specifications
| Nothing Buds 2 | Sennheiser IE 100 Pro 509171 | |
|---|---|---|
| Design | ||
| Form Factor | in-ear | in-ear |
| Wearing Style | true wireless | true wireless |
| Ear Tips | — | 4 earpiece adapters |
| Weight | 0.04 kg★ | 0.18 kg |
| Audio | ||
| Driver Type | dynamic | dynamic |
| Driver Size | 11 mm★ | — |
| Drivers | 2★ | — |
| Freq Min | — | 20 Hz★ |
| Freq Max | 5 kHz | 18 kHz★ |
| Impedance | 32 Ω | 20 Ω |
| Sensitivity | — | 115 dB★ |
| Hi-Res Audio | — | ✓★ |
| Codecs | SBC, AAC | Sennheiser Pro Audio IE 100 Pro Wireless In-Ear Monitor, Black |
| Noise Control | ||
| ANC | ✓★ | — |
| ANC Type | hybrid | — |
| Transparency | ✓★ | — |
| Connectivity | ||
| Wireless | ✓ | ✓ |
| Bluetooth | 5.4★ | — |
| Multipoint | ✓★ | — |
| Earbud Battery | ||
| Battery Life | 13.5 hrs★ | 10 hrs |
| Charge Time | 0.16599999368190765 hrs★ | — |
| Fast Charging | 10 min for 7.5 hours playback | — |
| Charging | USB-C | USB-C |
| Case Battery | ||
| Case Battery | 55 hrs★ | — |
| Case Charging | USB-C | USB-C |
| Wireless Charging | ✗ | — |
| Microphone | ||
| Microphone | ✓ | ✓ |
| Mic Count | 6★ | — |
| NC Mic | ✓★ | — |
| Features | ||
| Voice Assistant | ChatGPT | — |
| Touch Controls | ✓★ | — |
| App | Nothing X | — |
| Gaming Mode | ✓★ | — |
| Bone Conduction | ✗ | — |
| Water Resistance | IP55 | — |
Pros & Cons
Nothing Buds 2
- Strong mic (98th percentile)98th %ile
- Strong connectivity (97th percentile)97th %ile
- Strong battery (95th percentile)95th %ile
- Strong anc (93rd percentile)93rd %ile
Sennheiser IE 100 Pro 509171
- Strong sound (81st percentile)81st %ile
- Strong comfort (72nd percentile)
- Below average battery (10th percentile)10th %ile
- Below average anc (31st percentile)
- Below average user sentiment (33rd percentile)
- Below average build (34th percentile)
Pricing
Nothing Buds 2 offers 5.9x better value for money
Verdict
Scores 89 overall, wins 7 of 7 usage categories and 14 of 35 specs.
