Why is JAM 2 better than ROKR 300?
- Battery life30 h vs 12 h2.5×
Why is ROKR 300 better than JAM 2?
- Bluetooth version5 vs 5.3+6%
Specifications
Side by side
| Sound | ||
| Output power | 4 W | — |
| Speaker channels | 2.0 | — |
| Channel count | 2 | — |
| Stereo | Yes | — |
| Battery & charging | ||
| Battery life | 30 h | 12 h |
| Battery capacity | 250 mAh | — |
| Charging time | 3.5 h | — |
| Power bank function | Yes | — |
| Mains powered | No | No |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5.3 |
| Bluetooth codecs | SBC | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | — |
| Design & build | ||
| Weight | 240 g | — |
| Width | 97 mm | — |
| Height | 79 mm | — |
| Depth | 36 mm | — |
| Protection rating | IPX7 | IP67 |
| Water resistance (IPx) | IPx7 | IPx7 |
| Dust protection (IP) | — | 6 |
| Colours | Black | — |
| Features | ||
| Hands-free calls | Yes | — |
