Why is Major IV better than HD 450BT?
- Battery life80 h vs 30 h2.7×
- Weight165 g vs 238 g+44%
Why is HD 450BT better than Major IV?
- Active noise cancellingNo · Major IV: Yes
- aptXNo · Major IV: Yes
- Charging time3 h vs 2 h+50%
- Lowest frequency20 Hz vs 18 Hz+11%
- Highest frequency20,000 Hz vs 22,000 Hz+10%
Specifications
Side by side
| Sound | ||
| Fit | On-ear | Over-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 40 mm | — |
| Lowest frequency | 20 Hz | 18 Hz |
| Highest frequency | 20,000 Hz | 22,000 Hz |
| Impedance | 32 Ω | — |
| Sensitivity | 99 dB | 108 dB |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 80 h | 30 h |
| Battery life with ANC | — | 30 h |
| Battery capacity | — | 600 mAh |
| Charging time | 3 h | 2 h |
| Quick charge (claimed) | 15 min → 15 h | — |
| Fast charging support | Yes | — |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5 |
| Bluetooth codecs | SBC | aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | Yes |
| LDAC | No | No |
| USB-C | Yes | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant, Siri |
| Companion app | — | Yes |
| Design & build | ||
| Weight | 165 g | 238 g |
| Water resistance (IPx) | IPx0 | — |
| Foldable | Yes | Yes |
| Colours | — | Black, White |
| Features | ||
| Hands-free calls | Yes | Yes |
