You asked:
I'm looking for a remote-controlled bullet vibrator that doesn't automatically shut off and can be controlled by my husband. It should have adjustable controls and possibly connect to a phone, without needing to be inserted. Can you recommend one?
Grace:
How about considering the We-Vibe Moxie+? It isn't shaped like your typical bullet vibrator, but it's designed for exactly what you need. Although similar in size, its flat shape allows it to rest comfortably in your underwear, secured by a magnet on the opposite side. The vibrations are strong and can be controlled via the We-Vibe App as well as a physical remote control. It won't run forever, but I haven't experienced it turning off during a play session before.
Additionally, the very similar Lovense Ferri also meets your requirements, especially if you'd be interested in advanced app control at the sacrifice of having no physical remote. Though I haven't personally tested this one yet.