The Teenage Engineering PO-32 Tonic Drum Machine is a handheld drum machine featuring a built-in microphone, unlimited sounds, parameter locks, and a step multiplier. The PO-32 is the first pocket operator that allows unlimited sounds, as, in addition to the 16 preset sounds, you can use the Micro Tonic VST to develop your own unique sounds and transfer them wirelessly to the PO-32 with the built-in microphone, or by using a cable. This microphone helps you transfer and receive data over sound. It also has a removable lock tab for write protection of patterns.