Note: Auction links are affiliate links for which the site may be compensated.

via
this auctionReflex Audio"The MeeBlip SE is the latest version of our wildly popular digital monosynth. This auction is for a fully assembled factory demo unit in excellent condition (used in-house to shoot videos, so we can't sell it as new). It includes the latest firmware and 9V DC power supply (USA/Canada).

MeeBlip SE received Keyboard Magazine's coveted Key Buy Award in the May 2012 issue. Reviewer Francis Preve wrote, "it’s the features you won’t find elsewhere that give this synth some serious digital cred: stuff like switchable anti-aliasing, digital distortion mode, and oscillator FM. Because of those features, the MeeBlip is capable of binary grime that dubstep and IDM producers will absolutely love." (Read the entire review on the
Keyboard Magazine site).

For those of you who like gory technical details:
Virtual analog monosynth running on an Atmega32A microcontroller at 16 MHz
16 user-programmable patch memories
MIDI CC control of all patch parameters
Switchable waveform anti-aliasing (turn it off for added bass grunge)
New variable pulse width / PWM waveform
Dual digital oscillators with filter, LFO, ADSR envelope, FM (Frequency Modulation) and distortion
2-pole resonant low pass filter in software (with high-pass mode)
DDS (“Direct Digital Synthesizer“) oscillator waveforms (sawtooth / variable pulse / noise / triangle / PWM) at 39 kHz sample rate
Dual 8-bit weighted DAC audio output (approximates a 16-bit parallel DAC)
8 potentiometers for continuous input (bank shift function allows two parameters per pot)
16 software-defined parameter switches
4-pole active lowpass anti-aliasing filter
Opto-isolated MIDI input
9VDC power supply included"
Update: CDM who makes the MeeBlip with Reflex Audio has
a new and pretty extensive post up on the Meeblip with audio demos.