Teenage Engineering Pocket Operator (Bass Synth)

bass line synthesizer and sequencer with parameter locks, punch-in effects and play styles.

multiple real synthesizer engines, including fm, subtractive synthesis, wave table and physical modeled string.
16 punch-in effects including delay, bit crusher and filters.
16 punch-in bass oriented play styles
parameter locks
auto compressor
hardware limiter
16-step sequencer
16 patterns
16 pattern chaining
clock
alarm clock
jam sync with audio through
3.5 mm audio out / in
animated unique lcd display
folding stand
2 year standby time

Manual: https://www.teenageengineering.com/guides/po-12/en