![1girl bad_id bad_pixiv_id bdsm blonde_hair blue_eyes bondage bound commission commissioner_upload dildo_under_panties drooling empty_eyes forced_orgasm hair_between_eyes highres hitachi_magic_wand long_hair miyazono_kawori nipple_clamps open_mouth panties pink_panties purple_panties pussy_juice rope saliva shibari shigatsu_wa_kimi_no_uso socks solo spreader_bar stormcow toe_scrunch toilet underwear vibrator white_legwear rating:e score:39 post #2202513](/cdn_image/preview/c4/60/c4603875a4aa9aaf68c4162071172ea0.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.