Industry standard. It's great that it has the ability to program and. Swarm the beats so that after a certain number it automatically skips to the next song or another part of the song that is in a different time or needs different metronome sounds. All the options are there. It's a shame it doesn't come with a charger but I use rechargeable 9V batteries so it's not a problem. Need to find a way to turn on the light because it turns off after 5 seconds. All in all a great metronome, the best on the market.