A great simple, easy to use metronome. Good LOUD beat, easy change of tempo, and an A440 tuning note.
I had bought one for myself from Music Junction a while back. The two I just bought are for gifts for grandchildren.
I highly recommend this metronome if you wish to spend your time playing music and not straining to hear the beat and or changing batteries. The metronome does not have a volume control but a cloth or sheet music book can be used to dampen the sound when necessary.