vs
3.8Noise control & calls3.8
Why is RB-HX220B better than Grom Wired?
- Driver size40 mm vs 30 mm+33%
Why is Grom Wired better than RB-HX220B?
- Weight180 g vs 168 g+7%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | On-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | 40 mm | 30 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Impedance | — | 32 Ω |
| Noise control | ||
| Active noise cancelling | No | No |
| Battery & charging | ||
| Battery life | 23 h | — |
| Battery capacity | 430 mAh | — |
| Charging time | 2.5 h | — |
| Connectivity | ||
| Wireless | Yes | No |
| Bluetooth version | 5 | — |
| Bluetooth codecs | SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| 3.5 mm jack / AUX | — | Yes |
| Design & build | ||
| Weight | 180 g | 168 g |
| Foldable | Yes | — |
| Colours | — | Bone Seafoam, Surf Blue |
| Features | ||
| Hands-free calls | Yes | Yes |
