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3.8Noise control & calls3.8
Why is DT 990 PRO X better than RS 275?
- Highest frequency40,000 Hz vs 20,000 Hz2×
- Lowest frequency5 Hz vs 6 Hz+20%
Why is RS 275 better than DT 990 PRO X?
- Weight292 g vs 195 g+50%
Specifications
Side by side
| Sound | ||
| Fit | On-ear | On-ear |
| Ear cup design | Open-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Lowest frequency | 5 Hz | 6 Hz |
| Highest frequency | 40,000 Hz | 20,000 Hz |
| Impedance | 48 Ω | — |
| Sensitivity | 97 dB | 106 dB |
| Spatial / 3D audio | — | Yes |
| Hi-Res Audio | — | Yes |
| Noise control | ||
| Active noise cancelling | No | No |
| Battery & charging | ||
| Battery life | — | 50 h |
| Charging time | — | 2 h |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5.4 |
| Bluetooth codecs | — | aptX Adaptive, AAC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | Yes |
| aptX | — | Yes |
| LDAC | — | No |
| LE Audio | — | Yes |
| Auracast | — | Yes |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | — |
| Design & build | ||
| Weight | 292 g | 195 g |
| Foldable | — | Yes |
| Colours | Black | Black |
| Features | ||
| Hands-free calls | — | Yes |
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