Why is HA-A30T2 better than HP-C28BT?
- Battery life11 h vs 3.5 h3.1×
Why is HP-C28BT better than HA-A30T2?
- Earbud weight (each)4.5 g vs 3 g+50%
- Charging time2 h vs 1.5 h+33%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | — |
| Driver type | — | Dynamic |
| Driver size | 6 mm | 6.1 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | — | 16 Ω |
| Sensitivity | — | 90 dB |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | Yes | — |
| Transparency / ambient mode | Yes | — |
| Battery & charging | ||
| Battery life | 11 h | 3.5 h |
| Battery life with ANC | 8.5 h | — |
| Charging time | 2 h | 1.5 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Bluetooth codecs | AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Multipoint (two devices) | Yes | — |
| USB-C | — | Yes |
| Design & build | ||
| Earbud weight (each) | 4.5 g | 3 g |
| Protection rating | IPX4 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
