8.6Build & features4.1
Why is FreeArc better than Tune 255NC?
- Water resistance (IPx)IPx7 vs IPx4+75%
Why is Tune 255NC better than FreeArc?
Tune 255NC has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | Open-ear | In-ear |
| Ear cup design | Open-back | — |
| Driver type | Dynamic | — |
| Driver size | — | 10 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | — | 16 Ω |
| Sensitivity | — | 100 dB |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | — | Yes |
| Adaptive ANC | — | Yes |
| Transparency / ambient mode | — | Yes |
| Battery & charging | ||
| Battery life | — | 12 h |
| Battery life with ANC | — | 12 h |
| Total with charging case | — | 48 h |
| Battery capacity | — | 65 mAh |
| Charging time | — | 2 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.3 |
| Bluetooth codecs | AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | — | 52 g |
| Earbud weight (each) | 8.9 g | — |
| Protection rating | IP57 | IP54 |
| Water resistance (IPx) | IPx7 | IPx4 |
| Dust protection (IP) | 5 | 5 |
| Colours | — | Black |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | — |
