SVAKOM makes a vibrating toy that can be controlled with a phone as to intensity or mode from a good distance. My wife was reluctant for fear of possible infection from “outsiders” inside her nether regions.
Once she tried it she was hooked. I gave her the phone and she experimented with great delight.
Has 2 hour window of continuous use (but much longer due to pauses or switching modes —- usually teasingly) and our favorite time to play is in a bar or restaurant with me apparently “playing” on my phone while others are close by.
Got a pretty decent deal on what else…..Amazon…..