stylophone gen x-1 portable analog synthesizer: with built-in speaker, keyboard and soundstrip, lfo, low pass filter, envelope, sub-octaves & delay stylophone introducing the stylophone gen x-1, our new portable analogue synthesizer. from quirky beats to haunting melodies, you can twist and warp every note in the palm of your hand. packed with features, you’ll be amazed at what the gen x-1 can do. beginner or music pro, if you like the synth sound you’ll love this. from the makers of the iconic stylophone, it’s the next generation.