Upworthy Science - Rebecca Weiss, an industrial design graduate student from the University of Munich just snagged a major award for inventing a novel type of birth control – one that's hormone-free
![Men's contraceptive gadget 'COSO' that warms the testicles with ultrasonic waves is now available - GIGAZINE Men's contraceptive gadget 'COSO' that warms the testicles with ultrasonic waves is now available - GIGAZINE](https://i.gzn.jp/img/2021/09/27/coso-male-contraception/08.png)
Men's contraceptive gadget 'COSO' that warms the testicles with ultrasonic waves is now available - GIGAZINE
![They finally did it! Ball jacuzzi Men's Birth Control Stops Sperm With Ultrasound The "testicle bath" They finally did it! Ball jacuzzi Men's Birth Control Stops Sperm With Ultrasound The "testicle bath"](https://imgb.ifunny.co/images/4ac86d877646b1b2b82eee580029c601d6beb1a08e4f05b40520bd452d96b936_1.jpg)