vs
3.0Sound5.5
7.2Noise control & calls4.9
3.4Battery7.8
2.9Build & features4.6
Why is PerL better than Liberty 4 NC?
- Active noise cancellingYes · Liberty 4 NC: No
- aptXYes · Liberty 4 NC: No
- Charging time2 h vs 3 h+50%
Why is Liberty 4 NC better than PerL?
- Battery life6 h vs 10 h+67%
- Total with charging case24 h vs 50 h2.1×
- Hi-res codec (LDAC / aptX HD / LHDC)No · PerL: Yes
- LDACNo · PerL: Yes
- Earbud weight (each)7.4 g vs 5.2 g+42%
- Driver size10 mm vs 11 mm+10%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Driver type | Dynamic | Dynamic |
| Driver size | 10 mm | 11 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | — | 10 Ω |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Adaptive ANC | — | Yes |
| Transparency / ambient mode | Yes | Yes |
| Microphones | — | 6 |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 6 h | 10 h |
| Total with charging case | 24 h | 50 h |
| Charging time | 2 h | 3 h |
| Quick charge (claimed) | 5 min → 1 h | — |
| Fast charging support | Yes | — |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Bluetooth codecs | aptX, AAC, SBC | LDAC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | Yes |
| aptX | Yes | No |
| LDAC | No | Yes |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | 7.4 g | 5.2 g |
| Protection rating | IPX4 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Colours | — | Velvet Black, Clear White, Navy Blue, Pastel Pink, Light Blue |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
