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Why is ER2XR Extended Response better than Sonic?
ER2XR Extended Response has no measurable advantages in this pair.
Why is Sonic better than ER2XR Extended Response?
- Highest frequency16,000 Hz vs 20,000 Hz+25%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Bone conduction |
| Ear cup design | Closed-back | — |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 16,000 Hz | 20,000 Hz |
| Impedance | 15 Ω | 6 Ω |
| Sensitivity | 96 dB | 117 dB |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | — | Yes |
| Battery & charging | ||
| Battery life | — | 10 h |
| Charging time | — | 1 h |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5.2 |
| Bluetooth codecs | — | aptX Adaptive, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | Yes |
| aptX | — | Yes |
| LDAC | — | No |
| Multipoint (two devices) | — | Yes |
| 3.5 mm jack / AUX | Yes | — |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | — | 31 g |
| Protection rating | — | IP55 |
| Water resistance (IPx) | — | IPx5 |
| Dust protection (IP) | — | 5 |
| Colours | Blue, Black | — |
| Features | ||
| Hands-free calls | — | Yes |
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