vs
3.8Noise control & calls9.2
Why is Hi-X15 better than LIVE 660NC?
- Weight255 g vs 265 g+4%
- Lowest frequency12 Hz vs 16 Hz+33%
- Highest frequency24,000 Hz vs 20,000 Hz+20%
- Driver size44 mm vs 40 mm+10%
Why is LIVE 660NC better than Hi-X15?
- Active noise cancellingNo · Hi-X15: Yes
Specifications
Side by side
| Sound | ||
| Fit | On-ear | Over-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | 44 mm | 40 mm |
| Lowest frequency | 12 Hz | 16 Hz |
| Highest frequency | 24,000 Hz | 20,000 Hz |
| Impedance | 25 Ω | 32 Ω |
| Sensitivity | 113 dB | 97 dB |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Battery & charging | ||
| Battery life | — | 50 h |
| Battery life with ANC | — | 40 h |
| Battery capacity | — | 750 mAh |
| Charging time | — | 2 h |
| Quick charge (claimed) | — | 5 min → 1 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5 |
| Multipoint (two devices) | — | Yes |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Alexa, Google Assistant |
| Companion app | — | Yes |
| Design & build | ||
| Weight | 255 g | 265 g |









