Wow, just googled vibrator for breast massage and found this thread. Lol. I see that it's from 2014, so it's unlikely that I will receive feedback. But, anyway, have you tried it? If so, what vibrator did you use? I'm thinking of using my 7-inch dildo putting it horizontally. I also searched for vibrating brassiere but found nothing decent. I can recommend using an ass plug and clit clamp during the massage. The massage becomes something unreal (if you have someone who doesn't mind such tricks). About batteries, in 2021, we have no problems with single-charge longevity 