Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Nice sound, terrible wireless reception

I have my sound system in the living room and just wanted to add some speakers in my bedroom.I live in a medium size apartment, the distance between the emiter and the receiver is less than 10 mts (30 feet). Only one wall exists between them and I places the emiter close to the ceiling and the antena pointing to the bedroom.All seemed to be fine but....1. When I walk in the bedroom the signal gets lost, I'm short and the emiter and receiver are installed close to the celiling but my walking interrupts the signal anyway.2. Sometimes, even if I'm lying in the bed and move a little. The signal also gets lost.3. As someone already pointed, it shutdowns the wireless network from time to time. (More often than "from time to time" really)I love the sound of the speakers, but the wireless system is really bad. It's not even acceptable, it doesn't works as should for a system which innovation is precisely to be wireless.Not happy at all with the speakers.