The Sennheiser HD1 Wireless supports 2 codecs (aptX, SBC). The Audio-Technica ATH-ANC40BT supports 1 codec (SBC).
| Codec | Sennheiser HD1 Wireless Details | Change |
Audio-Technica ATH-ANC40BT Details | Change |
|---|---|---|
| aptX LL | No | No |
| aptX HD | No | No |
| LDAC | No | No |
| AAC | No | No |
| UHQ | No | No |
| aptX | Yes | No |
| SBC | Yes | Yes |
| Bluetooth Version | 4.0 | 3.0 |
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