The BenQ-Siemens EF91 and Bowers & Wilkins PX have 1 common Bluetooth A2DP audio codec (SBC). The BenQ-Siemens EF91 supports 1 codec (SBC). The Bowers & Wilkins PX supports 4 codecs (aptX HD, AAC, aptX, SBC).
| Codec | BenQ-Siemens EF91 Details | Change |
Bowers & Wilkins PX Details | Change |
|---|---|---|
| aptX LL | No | No |
| aptX HD | No | Yes |
| LDAC | No | No |
| AAC | No | Yes |
| UHQ | No | No |
| aptX | No | Yes |
| SBC | Yes | Yes |
| Bluetooth Version | 1.2 | 4.1 |
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