2.097152 Mhz Crystal (Underclock mod: half speed)

This timing crystal can be swapped with the normal 4.194304 crystals commonly found in Game Boys to "halve" your clock speed. This will cause your Game Boy to run at half it's normal speed. The benefit of this is that all sounds made by your Game Boy will also be halved, meaning your notes will drop one octave. Very handy for the musician who likes to make glitchy, crunchy basslines!