vs
8.4Noise control & calls4.6
7.2Battery4.8
Why is AMIRON 300 better than Ultra Open Earbuds?
- Active noise cancellingYes · Ultra Open Earbuds: No
- Battery life10 h vs 7 h+43%
- Total with charging case40 h vs 27 h+48%
- LDACYes · Ultra Open Earbuds: No
Why is Ultra Open Earbuds better than AMIRON 300?
- Charging time2 h vs 1 h2×
- aptXNo · AMIRON 300: Yes
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Open-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 10 mm | — |
| Lowest frequency | 20 Hz | — |
| Highest frequency | 40,000 Hz | — |
| Impedance | 32 Ω | — |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Transparency / ambient mode | Yes | Yes |
| Microphones | 6 | — |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 10 h | 7 h |
| Battery life with ANC | 7 h | — |
| Total with charging case | 40 h | 27 h |
| Charging time | 2 h | 1 h |
| Fast charging support | Yes | — |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Bluetooth codecs | LDAC, AAC, SBC | aptX Adaptive, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | No | Yes |
| LDAC | Yes | No |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Earbud weight (each) | 4.4 g | — |
| Protection rating | IP54 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | 5 | — |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
