Why is KH-BT04 better than VMK15?
- Hi-res codec (LDAC / aptX HD / LHDC)Yes · VMK15: No
- Battery life60 h vs 55 h+9%
- Charging time1.5 h vs 3 h2×
Why is VMK15 better than KH-BT04?
- Battery life with ANC40 h vs 55 h+38%
- Weight245 g vs 200 g+23%
- Battery capacity800 mAh vs 1,050 mAh+31%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | On-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 40 mm | 40 mm |
| Lowest frequency | 20 Hz | — |
| Highest frequency | 20,000 Hz | — |
| Impedance | 32 Ω | 32 Ω |
| Sensitivity | — | 95 dB |
| Hi-Res Audio | Yes | — |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 60 h | 55 h |
| Battery life with ANC | 40 h | 55 h |
| Battery capacity | 800 mAh | 1,050 mAh |
| Charging time | 1.5 h | 3 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| Bluetooth codecs | aptX HD | aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | No |
| aptX | Yes | Yes |
| LDAC | No | No |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | — | Yes |
| Design & build | ||
| Weight | 245 g | 200 g |
| Foldable | Yes | — |
| Colours | Black | Black |
| Features | ||
| Hands-free calls | Yes | Yes |
