The Karbonn A21 and Sony h.ear on 2 NC WH-H900N have 1 common Bluetooth A2DP audio codec (SBC). The Karbonn A21 supports 1 codec (SBC). The Sony h.ear on 2 NC WH-H900N supports 5 codecs (aptX HD, LDAC, AAC, aptX, SBC).
| Codec | Karbonn A21 Details | Change |
Sony h.ear on 2 NC WH-H900N Details | Change |
|---|---|---|
| aptX LL | No | No |
| aptX HD | No | Yes |
| LDAC | No | Yes |
| AAC | No | Yes |
| UHQ | No | No |
| aptX | No | Yes |
| SBC | Yes | Yes |
| Bluetooth Version | 2.1 | 4.1 |
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