Dimensions
Size comparison
BTS-210OB-4
| BTS-210 | OB-4 | Difference | |
|---|---|---|---|
| Height | 100 mm | 284 mm | −184 mm |
| Width | 205 mm | 232.5 mm | −27.5 mm |
| Depth | 78 mm | 57.5 mm | +20.5 mm |
| Weight | 1,170 g | 1,700 g | −530 g |
Drawn to the same scale from the official dimensions (front and side).
Why is BTS-210 better than OB-4?
- Weight1,170 g vs 1,700 g+45%
Why is OB-4 better than BTS-210?
OB-4 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Output power | 10 W | 10 W |
| Speaker channels | 2.0 | 2.0 |
| Channel count | 2 | 2 |
| Lowest frequency | — | 52 Hz |
| Highest frequency | — | 25,000 Hz |
| Stereo | Yes | Yes |
| Battery & charging | ||
| Battery life | — | 8 h |
| Battery capacity | 1,500 mAh | — |
| Mains powered | No | No |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth codecs | SBC | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| 3.5 mm jack / AUX | Yes | Yes |
| Design & build | ||
| Weight | 1,170 g | 1,700 g |
| Width | 205 mm | 232 mm |
| Height | 100 mm | 284 mm |
| Depth | 78 mm | 58 mm |
| Features | ||
| Hands-free calls | Yes | — |









