The Koss Porta Pro Wireless supports 2 codecs (aptX, SBC). The Audio-Technica ATH-DSR9BT supports 4 codecs (aptX HD, AAC, aptX, SBC).
| Codec | Koss Porta Pro Wireless Details | Change |
Audio-Technica ATH-DSR9BT Details | Change |
|---|---|---|
| aptX LL | No | No |
| aptX HD | No | Yes |
| LDAC | No | No |
| AAC | No | Yes |
| UHQ | No | No |
| aptX | Yes | Yes |
| SBC | Yes | Yes |
| Bluetooth Version | 4.1 | 4.2 |
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