Why is JR310BT better than Rewind?
- Bluetooth version5 vs 4.2+19%
Why is Rewind better than JR310BT?
- Weight113 g vs 57 g+98%
- Driver size32 mm vs 36 mm+12%
Specifications
Side by side
| Sound | ||
| Fit | On-ear | On-ear |
| Ear cup design | — | Open-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 32 mm | 36 mm |
| Number of drivers | 1 | 1 |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 32 Ω | 32 Ω |
| Sensitivity | 85 dB | 106 dB |
| Noise control | ||
| Active noise cancelling | No | No |
| Battery & charging | ||
| Battery life | 12 h | 12 h |
| Battery capacity | — | 220 mAh |
| Charging time | 2 h | 2 h |
| Quick charge (claimed) | — | 10 min → 1.5 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 4.2 |
| Bluetooth codecs | SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| USB-C | Yes | — |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant, Siri |
| Design & build | ||
| Weight | 113 g | 57 g |
| Foldable | Yes | — |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | Yes | — |
