vs
9.8Noise control & calls9.2
Why is SoundForm Isolate better than BTH20?
SoundForm Isolate has no measurable advantages in this pair.
Why is BTH20 better than SoundForm Isolate?
BTH20 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | — | On-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | 40 mm | 40 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Sensitivity | — | 80 dB |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Microphones | 6 | — |
| Battery & charging | ||
| Battery life | 60 h | 60 h |
| Battery life with ANC | — | 35 h |
| Battery capacity | — | 500 mAh |
| Quick charge (claimed) | — | 10 min → 5 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.4 |
| Multipoint (two devices) | Yes | — |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Design & build | ||
| Weight | — | 220 g |
| Features | ||
| Hands-free calls | — | Yes |









