There were frequent signal drops in calls — the calls wouldn't be disconnected, but I would have to move around a bit to be able to hear the other party again. (sammobile.com)
Interestingly, the calcium signals dropped before eating began, including cases where food was visible but not accessible for consumption. (sciencedaily.com)
The range is also very short; we could get only one room away from our source device before signal drop began to occur. (thewirecutter.com)