Why is JR310 better than RB-HF630B?
- Weight113 g vs 140 g+24%
- Driver size32 mm vs 30 mm+7%
Why is RB-HF630B better than JR310?
RB-HF630B has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | On-ear | On-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | 32 mm | 30 mm |
| Number of drivers | 1 | — |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Sensitivity | 85 dB | — |
| Noise control | ||
| Active noise cancelling | No | No |
| Battery & charging | ||
| Battery life | — | 72 h |
| Charging time | — | 4 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5.3 |
| Bluetooth codecs | — | AAC, 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 | 113 g | 140 g |
| Foldable | Yes | Yes |
| Colours | Blue | — |
| Features | ||
| Hands-free calls | — | Yes |
