With a built-in vibration sensor, the SBT01 tuner easily clips on to any instrument – it’s fully chromatic, having a 12 note range so you can tune all instruments, not just your guitar or ukulele. It’s fully adjustable, the Sponge spins, ducks and dives, so viewing the natty blue backlit LCD display with white symbology housed inside his mouth is no problem. What’s really clever about this tuner is that SpongeBob’s two teeth actually sweep across the display whilst tuning, indicating whether the note is flat or sharp.

A large note letter is also displayed indicting the note being tuned. Further flat/in tune/sharp LED indictors also light up along his belt for added reference. It’s ready to go straight out of the pack with a battery included and has a very accurate +/-1 cent tolerance. You won’t believe how much fun tuning up can be.