vs
8.6Noise control & calls5.7
7.7Battery2.4
Why is KH-BT04 better than Crusher 720?
- Battery life60 h vs 4 h15×
- Active noise cancellingYes · Crusher 720: No
- Weight245 g vs 363 g+48%
- Driver size40 mm vs 10 mm4×
- Battery capacity800 mAh vs 65 mAh12.3×
- Charging time1.5 h vs 3 h2×
Why is Crusher 720 better than KH-BT04?
Crusher 720 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | — |
| Driver size | 40 mm | 10 mm |
| Number of drivers | — | 4 |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 32 Ω | 36 Ω |
| Sensitivity | — | 110 dB |
| Spatial / 3D audio | — | Yes |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Transparency / ambient mode | — | Yes |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 60 h | 4 h |
| Battery life with ANC | 40 h | — |
| Battery capacity | 800 mAh | 65 mAh |
| Charging time | 1.5 h | 3 h |
| Quick charge (claimed) | — | 10 min → 4 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| Bluetooth codecs | aptX HD | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | — |
| aptX | Yes | — |
| LDAC | No | — |
| Multipoint (two devices) | — | Yes |
| LE Audio | — | Yes |
| Auracast | — | Yes |
| USB-C | — | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | 245 g | 363 g |
| Foldable | Yes | — |
| Colours | Black | True Black, Primer, Future, Plasma, Cement |
| Features | ||
| Hands-free calls | Yes | — |
