Why is KH-BT04 better than Space 2?
- Battery life60 h vs 50 h+20%
- aptXYes · Space 2: No
- Weight245 g vs 260 g+6%
- Charging time1.5 h vs 2 h+33%
Why is Space 2 better than KH-BT04?
- Battery life with ANC40 h vs 70 h+75%
- LDACNo · KH-BT04: Yes
- Bluetooth version5.4 vs 6.1+13%
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 | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 32 Ω | 16 Ω |
| Sensitivity | — | 120 dB |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Transparency / ambient mode | — | Yes |
| Noise reduction for calls | Yes | Yes |
| Battery & charging | ||
| Battery life | 60 h | 50 h |
| Battery life with ANC | 40 h | 70 h |
| Battery capacity | 800 mAh | — |
| Charging time | 1.5 h | 2 h |
| Quick charge (claimed) | — | 5 min → 4 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 6.1 |
| Bluetooth codecs | aptX HD | LDAC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | Yes | No |
| LDAC | No | Yes |
| Multipoint (two devices) | — | Yes |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | — | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | 245 g | 260 g |
| Foldable | Yes | Yes |
| Colours | Black | Seafoam Green, Linen White, Jet Black |
| Features | ||
| Hands-free calls | Yes | Yes |
