Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Does it work through walls
Document: Works well. Did not give 5 stars because although it has sooo many tunes, most are really long. I would have liked to have more than just 2-2 short bell like sounds. The light around the bell button and the receivers is nice.
Very happy with this doorbell. Easy installation had the system working in minutes. Duel receivers lets us hear the doorbell throughout the whole house. Really like the choice of ring tones and volume control.
This combination works nicely. The button seems more reliable than other brand units we had (which is why I went looking). This also seems to have very good range and a lightup confirms to the pusher (no drug reference implied, we are not that way) that their push has accomplished something.
Nice design and very easy to install. Excellent service and immediate reaction when questions asked.
Great service and great product
Answer: no