![1girl alice_in_wonderland animal_ears apron basket blue_dress blue_sky blush card cat_ears catstudioinc_(punepuni) cloud day dress hitachi_magic_wand long_hair original puffy_short_sleeves puffy_sleeves puni_(miku_plus) red_eyes red_hair short_sleeves sky solo striped striped_legwear thighhighs tree very_long_hair waist_apron wrist_cuffs rating:s score:9 post #2294127](/cdn_image/preview/3c/26/3c26295a710a56968df406f2dc4a420b.jpg)
An electric massager first released in the 1970's for medical use, it was quickly picked up and utilized as a sex toy. It looks like a strange microphone with a white and/or gray head that vibrates.
Its pixiv tag is 電マ (den-ma), an abbreviation for 電動マッサージ機 (electric massager). Not to be confused with denki anma.