vs
7.2Noise control & calls3.1
3.4Battery7.3
Why is ZE300 for ASMR better than Junior Free?
- Active noise cancellingYes · Junior Free: No
- Charging time1.5 h vs 2 h+33%
Why is Junior Free better than ZE300 for ASMR?
- Battery life5.5 h vs 10 h+82%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Open-ear |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Sensitivity | — | 85 dB |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Transparency / ambient mode | Yes | — |
| Battery & charging | ||
| Battery life | 5.5 h | 10 h |
| Charging time | 1.5 h | 2 h |
| Quick charge (claimed) | — | 5 min → 1 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth codecs | AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| Multipoint (two devices) | — | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | — | 25 g |
| Earbud weight (each) | 4 g | — |
| Protection rating | IPX4 | — |
| Water resistance (IPx) | IPx4 | — |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | Yes |
