vs
7.2Noise control & calls4.2
Why is Tune Flex 2 better than Rail ANC?
- Active noise cancellingYes · Rail ANC: No
- Driver size12 mm vs 6 mm2×
Why is Rail ANC better than Tune Flex 2?
- Total with charging case24 h vs 38 h+58%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 12 mm | 6 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 13 Ω | — |
| Sensitivity | 98 dB | 100 dB |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Transparency / ambient mode | Yes | — |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 12 h | — |
| Battery life with ANC | 8 h | — |
| Total with charging case | 24 h | 38 h |
| Charging time | 2 h | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.2 |
| Bluetooth codecs | AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | — |
| Smart & streaming | ||
| Voice assistant | Google Assistant | — |
| Design & build | ||
| Earbud weight (each) | 4.2 g | — |
| Protection rating | IP54 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | 5 | — |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | Yes |
