Your strength is your foundation! For women, strength isn't a choice. It's a way of life. OhMiBod Lovelife Krush Kegel exerciser helps strengthen the pelvic floor, which weakens over time due to childbirth and age. Equipped with built-in sensor technology & a strong motor for deep vibrations, Krush measures the pressure, control, endurance, and grip of your PC muscles. Simply connect to TASL (The Art & Science of Love) app, and you'll build the strength to control your flow, enhance your pleasure, and love more about life. OhMiBod Lovelife Krush Product Features: Material: body-safe silicone Power type: USB rechargeable Built-in sensor measuring pelvic floor muscle strength Built-in motor for haptic training feedback and pleasure Waterproof Diameter: 1.3" at widest point One-year manufacturer's warranty OhMiBod TASL App Features: Quick Start Guide Pelvic Training Courses Voice-Guided Training Exercise Activity Training Goal Setting and Rewards App locking feature for extra security