vs
3.4Battery4.6
2.1Connectivity6.1
Why is REWIND 2 better than AL4 Freedom?
REWIND 2 has no measurable advantages in this pair.
Why is AL4 Freedom better than REWIND 2?
- Battery life20 h vs 36 h+80%
- Weight57 g vs 41 g+39%
- Bluetooth version5 vs 5.3+6%
- Battery capacity220 mAh vs 250 mAh+14%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Driver type | Dynamic | — |
| Driver size | 36 mm | — |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 32 Ω | — |
| Sensitivity | 106 dB | — |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | — | No |
| Microphones | 1 | — |
| Noise reduction for calls | Yes | Yes |
| Battery & charging | ||
| Battery life | 20 h | 36 h |
| Battery capacity | 220 mAh | 250 mAh |
| Charging time | 2 h | — |
| Quick charge (claimed) | 10 min → 3 h | — |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5.3 |
| Bluetooth codecs | SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| 3.5 mm jack / AUX | — | Yes |
| Latency | 200 ms | — |
| Low-latency game mode | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant, Siri |
| Companion app | Yes | Yes |
| Design & build | ||
| Weight | 57 g | 41 g |
| Protection rating | — | IPX6 |
| Water resistance (IPx) | — | IPx6 |
| Foldable | — | Yes |
| Features | ||
| Hands-free calls | Yes | — |
