The Gballs2 by Fun Toys is an incredible smart kegel training set, comprising of soft silicone coated kegel balls with a special Bluetooth 4.0 technology, along with a special downloadable app that acts as a personal coach. The Gballs2 design is perfect for consumers who wish to track their progress, or need some extra assistance. The unique app features 6 comprehensive training courses and daily targets for extra motivation. The kegel set is rechargeable (charging cord included), made of premium silicone, and comes with an ultra sensitive pressure sensor that ensures the accuracy of intimate biofeedback. Thrilling sensational and improving your intimate muscles? Working out has never been so pleasurable thanks to the Gballs2.