| Brand | Hertz |
| Trade name | HMR 20 |
| Model line-up | 2021 year |
| Amplifier power | 4x50 W |
| Type | marine media receiver with bluetooth |
| Display | + |
| Screen size, inches | 3' |
| Built-in Bluetooth | + |
| Built-in GPS | - |
| USB / SD reader | USB |
| Audio In / Audio Out | + / + |
| Note | Equalizer (number of bands): 4;
Protection class: IP66 |
| Manufacturer | Italy |
| Warranty / Service | 12 months |
| Price per | pcs |
| Equalizer (number of bands) | 4
|
| Protection class | IP66 |