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Why is ER2XR Extended Response better than OpenRun Mini USB-C?
- Lowest frequency20 Hz vs 21 Hz+5%
Why is OpenRun Mini USB-C 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 | Open-back |
| Driver type | — | Dynamic |
| Lowest frequency | 20 Hz | 21 Hz |
| Highest frequency | 16,000 Hz | 20,000 Hz |
| Impedance | 15 Ω | 8 Ω |
| Sensitivity | 96 dB | 4 dB |
| Adjustable equaliser | — | Yes |
| Battery & charging | ||
| Battery life | — | 10 h |
| Charging time | — | 1.5 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5.1 |
| Bluetooth codecs | — | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| Multipoint (two devices) | — | Yes |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | — |
| Design & build | ||
| Weight | — | 380 g |
| Protection rating | — | IPX4 |
| Water resistance (IPx) | — | IPx4 |
| Dust protection (IP) | — | 6 |
| Colours | Blue, Black | — |
| Features | ||
| Hands-free calls | — | Yes |
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