![1girl agnes_joubert artist_name black_legwear breasts brown_hair censored character_name crotch_seam fingernails green_eyes hitachi_magic_wand large_breasts lips lipstick long_fingernails long_hair looking_at_viewer makeup mole mole_under_mouth nipples open_clothes open_shirt pantyhose parted_lips pubic_hair shirt skirt skirt_lift solo star_censor tiger_&_bunny vibrator wakino_keibun rating:e score:6 post #1947893](/cdn_image/preview/0f/a0/0fa0c97b89a7852db44d9c6349365729.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.