Harman Kardon Omni 10chat_bubble_outlineFrom real comments

Audio-video synchronization is a reported problem. One user explicitly states that the video plays faster than the audio, describing it as a defect that reviewers should disclose. This same user mentions ongoing difficulty obtaining a refund from Harman for what they consider a defective product, suggesting the issue was significant enough to warrant a return request rather than a minor annoyance.

Bluetooth performance draws specific delay complaints. A commenter states the Bluetooth connection has a 40-second delay, which becomes apparent when watching movies or listening to slow songs where timing mismatches are more noticeable. This suggests the wireless connection may not be suited for time-sensitive media playback despite working for general audio streaming.

Power and sleep behavior raise user uncertainty. One user asks whether it's safe to leave the Omni 10 plugged in continuously since it lacks an on/off button, noting the center button turned orange unexpectedly. Another user reports the unit randomly enters sleep mode during aux cable use, requiring repeated button presses on top to wake it back up, indicating inconsistent standby behavior.