SX-150 synth / SX-150 Mark ll synth / Mini Electronic Guitar

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via this auction

Stylophone type synths that came with the Japanese Gakken magazine back in the day.

"1: SX-150 Synthesizer...

cutoff + switched resonance control
pitch envelope
LFO wave
LFO rate
attack and decay
hi / lo volume switch
external source input
output
internal speaker
takes 4 x AA batteries

2: SX-150 Mark II Synthesizer:

cutoff and resonance control
attack / decay
pitch envelope
LFO wave
LFO rate
LFO depth
on / off / gate switch
line in / line out
internal speaker
takes 4 x AA batteries

electronic Guitar:

the guitar has steel strings and a pickup like a regular electric guitar
internal speaker + 1/4 inch jack output socket
on / off volume control
takes 2 x AA batteries

all three items are in excellent condition and fully functional
no batteries are included"