9.2Noise control & calls4.0
Why is LIVE 660NC better than SRH840A?
- Active noise cancellingYes · SRH840A: No
- Weight265 g vs 273 g+3%
Why is SRH840A better than LIVE 660NC?
- Lowest frequency16 Hz vs 5 Hz3.2×
- Highest frequency20,000 Hz vs 25,000 Hz+25%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 40 mm | 40 mm |
| Lowest frequency | 16 Hz | 5 Hz |
| Highest frequency | 20,000 Hz | 25,000 Hz |
| Impedance | 32 Ω | 40 Ω |
| Sensitivity | 97 dB | 97 dB |
| Noise control | ||
| Active noise cancelling | Yes | No |
| 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 | Yes | No |
| 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 | 265 g | 273 g |
| Colours | — | Black |
