[Avign0n4090]

I, too, have found that the above massagers don't do much.  I do regularly use some nipple massagers that give me insane stimulation.  They have been good for up to 45 minutes on a charge. I haven't had any trouble keeping the soft silicone domes attached to my breasts, but other users have complained about that. Unfortunately, one of my pair has malfunctioned after about 20 hours of use.

You have a link to where you bought them?