vs
5.4Noise control & calls7.2
4.5Battery2.4
3.5Build & features3.8
Why is Accentum Open better than E3?
- Battery life6 h vs 4.5 h+33%
- Driver size11 mm vs 10 mm+10%
Why is E3 better than Accentum Open?
E3 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Open-back | — |
| Driver type | Dynamic | Dynamic |
| Driver size | 11 mm | 10 mm |
| Lowest frequency | 25 Hz | — |
| Highest frequency | 15,000 Hz | — |
| Impedance | — | 16 Ω |
| Sensitivity | 109 dB | 99 dB |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Transparency / ambient mode | — | Yes |
| Microphones | 2 | — |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 6 h | 4.5 h |
| Total with charging case | 28 h | — |
| Charging time | 1 h | — |
| Fast charging support | Yes | — |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Bluetooth codecs | AAC, 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 |
| Design & build | ||
| Weight | — | 51 g |
| Earbud weight (each) | 8.7 g | — |
| Protection rating | IPX4 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Colours | Cream, Black, Blush | — |
| Features | ||
| Touch controls | Yes | Yes |
| Wear detection (auto pause) | Yes | — |
| Hands-free calls | Yes | Yes |







