![ayase_eli ball_gag bdsm black_legwear blonde_hair blue_eyes blush bondage bound breast_bondage crotch_rope duct_tape frogtie gag gagged green_eyes high_heels highres hitachi_magic_wand improvised_gag long_hair love_live! love_live!_school_idol_project low_twintails otonokizaka_school_uniform panties pantyhose ponytail purple_hair rope rope_marks ryner-e school_uniform scrunchie skirt tape tape_gag tears thighhighs toujou_nozomi twintails underwear vibrator vibrator_under_clothes white_scrunchie yuri rating:q score:11 ayase_eli ball_gag bdsm black_legwear blonde_hair blue_eyes blush bondage bound breast_bondage crotch_rope duct_tape frogtie gag gagged green_eyes high_heels highres hitachi_magic_wand improvised_gag long_hair love_live! love_live!_school_idol_project low_twintails otonokizaka_school_uniform panties pantyhose ponytail purple_hair rope rope_marks ryner-e school_uniform scrunchie skirt tape tape_gag tears thighhighs toujou_nozomi twintails underwear vibrator vibrator_under_clothes white_scrunchie yuri](/cdn_image/preview/a5/e7/a5e7e6c8af525c0a03e0f120fbf3bbab.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.