Why is Rockerz 255 Pro better than HA-A4T?
- Water resistance (IPx)IPx7 vs IPx4+75%
Why is HA-A4T better than Rockerz 255 Pro?
- Bluetooth version5 vs 5.4+8%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Semi-in-ear (open) |
| Ear cup design | Closed-back | Open-back |
| Driver type | Dynamic | — |
| Driver size | — | 12 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Impedance | 255 Ω | — |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | — |
| Battery & charging | ||
| Battery life | — | 7.5 h |
| Battery capacity | 500 mAh | — |
| Charging time | — | 2 h |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5.4 |
| Bluetooth codecs | — | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| USB-C | — | Yes |
| Design & build | ||
| Earbud weight (each) | — | 4 g |
| Protection rating | IPX7 | IPX4 |
| Water resistance (IPx) | IPx7 | IPx4 |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
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