"This wireless door bell suits me perfect. The sound quality could be better but then that would push the price up. Plenty of choice of tones and of course using your own MP3s. My only gripe would be the method used for mounting on the wall, a single mounting point would have been much easier rather than 2 points vertical, and not in the middle, which means you must use both mounts or it will not hang straight. All things considered good value at this price."