vs
9.2Noise control & calls3.8
6.8Battery2.9
Why is TUNE 660NC better than HD 250 BT?
- Battery life55 h vs 25 h2.2×
- Active noise cancellingYes · HD 250 BT: No
- Charging time2 h vs 3 h+50%
Why is HD 250 BT better than TUNE 660NC?
- Weight166 g vs 125 g+33%
- Highest frequency20,000 Hz vs 22,000 Hz+10%
Specifications
Side by side
| Sound | ||
| Fit | On-ear | On-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | Dynamic |
| Driver size | 32 mm | — |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 22,000 Hz |
| Impedance | 32 Ω | — |
| Sensitivity | 100 dB | 94 dB |
| Hi-Res Audio | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Battery & charging | ||
| Battery life | 55 h | 25 h |
| Battery life with ANC | 44 h | — |
| Battery capacity | 610 mAh | — |
| Charging time | 2 h | 3 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5 |
| Bluetooth codecs | — | aptX, AAC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | Yes |
| LDAC | — | No |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Low-latency game mode | — | Yes |
| Smart & streaming | ||
| Voice assistant | Alexa, Google Assistant, Siri | — |
| Companion app | — | Yes |
| Design & build | ||
| Weight | 166 g | 125 g |
| Foldable | Yes | — |
| Colours | — | Black |
