The Motorola ROKR E2 supports 1 codec (SBC). The Energizer Energy E551S supports 5 codecs (aptX HD, LDAC, AAC, aptX, SBC).
| Codec | Motorola ROKR E2 Details | Change |
Energizer Energy E551S 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 | 2.0 | 4.0 |
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