KEF Charcoal Grey SP4028GA
A variant of KEF Charcoal Grey
| Brand | KEF |
| Model | Charcoal Grey |
| Driver size (mm) | |
| Noise cancelling | |
| Frequency response | 20 Hz – 20000 Hz |
| Impedance (Ω) | |
| Battery life (hours) | 9 |
| Bluetooth version | 5 |
| Dust protection (IP code) | |
| Water protection (IP code) | |
| Bluetooth | True |
| Height (mm) | |
| Width (mm) | |
| Depth (mm) | |
| Weight (kg) | 0.0058 |