Why is M19 better than A1?
M19 has no measurable advantages in this pair.
Why is A1 better than M19?
- Total with charging case25 h vs 40 h+60%
- Bluetooth version5.1 vs 5.3+4%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | — | 6 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Impedance | 13 Ω | — |
| Noise control | ||
| Active noise cancelling | No | No |
| Battery & charging | ||
| Battery life | 9 h | 9 h |
| Total with charging case | 25 h | 40 h |
| Battery capacity | — | 50 mAh |
| Charging time | 3 h | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.1 | 5.3 |
| Bluetooth codecs | — | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| Design & build | ||
| Protection rating | — | IPX8 |
| Water resistance (IPx) | — | IPx8 |
| Colours | Black | — |
