Pipedream Products Remote Control Robo Ring, Black, Red by Pipedream Products. $23.25. Long lasting erection. Remote control. Batteries included. This vibrating erection ring not only helps maintain firmer, longer-lasting erections, but it also provides moderate single-speed vibrations with easy, wireless remote-control access. sturdy and manly, it may look intimidating, but it aims to please! includes free batteries.. Save 70%!