vs
6.1Battery4.9
Why is SoundForm Bolt True Wireless Earphones better than Free 2S?
- Battery life9 h vs 7 h+29%
Why is Free 2S better than SoundForm Bolt True Wireless Earphones?
- Water resistance (IPx)IPx4 vs IPx7+75%
- Microphones2 vs 42×
- Total with charging case28 h vs 30 h+7%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | — |
| Driver size | 6 mm | — |
| Spatial / 3D audio | — | Yes |
| Noise control | ||
| Active noise cancelling | No | — |
| Microphones | 2 | 4 |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 9 h | 7 h |
| Total with charging case | 28 h | 30 h |
| Battery capacity | — | 40 mAh |
| Charging time | — | 1.5 h |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.2 |
| Bluetooth codecs | — | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| USB-C | — | Yes |
| Latency | — | 60 ms |
| Low-latency game mode | — | Yes |
| Design & build | ||
| Protection rating | IPX4 | IPX7 |
| Water resistance (IPx) | IPx4 | IPx7 |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | — |
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