An incontinence treatment device includes a band, magnets, and a power source. The band has a length extending between a first end and a second end. A first magnet is connected to a first end portion of the band and a second magnet is connected to a second end portion of the band. The band is implantable around a urethra and configured to constrict a lumen of the urethra when the first magnet is coupled to the second magnet. The power source is electrically coupled to the first and second magnets and configured to electromagnetically couple and decouple the first magnet relative to the second magnet.