But every time you pick your guitar up to play you'll need to check it's in tune. So invest in a decent headstock tuner and pedal tuner. But what if your acoustic or electric guitar won't stay in ...

The V-800 can turn your electric guitar into a sonic chameleon, nailing the tones of another electric, turning it into an acoustic, a sitar or a huge range of sounds – and it works with bass guitars t ...