Key benefits Strengthens pelvic floor muscles to improve bladder control, sexual health, and core support. Increases the intensity of orgasms through targeted kegel training and optional vibration. Allows progressive training with interchangeable weights to match your current level and goals. Discreet, quiet operation for private use at home. Main features Body-safe medical grade silicone that is smooth, skin-friendly, and suitable for comfortable insertion. Interchangeable bead set: 11 gram vibrating ball with 9 frequency modes, plus 21 gram and 29 gram ben a ball for nonvibrating weight training. Single-ball silicone harness for individual weight practice and a double-ball harness to combine weights up to a maximum of 58 grams. 9 vibration modes adjusted by remote control for customizable stimulation and training. Waterproof, rated IPX7, safe for use in the tub or shower. Simple installation and multiple combination options for stepwise progression. Rechargeable via USB magnetic charging for convenient, cable-free power. Quiet operation, under 50 DB, for discreet sessions. How it solves common problems Difficulty activating pelvic muscles: the weighted beads provide tactile feedback that makes it easier to feel and strengthen the correct muscles. Inconsistent training progress: exchangeable weights let you increase resistance gradually and track improvement. Boredom or limited stimulation options: vibration with 9 modes adds variety and can enhance sexual response. Concerns about safety and hygiene: medical grade silicone and waterproof construction permit safe, easy cleaning. Performance and compatibility Material: Medical Grade Silicone for safe, long-lasting contact with skin. Vibration control: 9 modes via remote control, suitable for a range of sensitivity levels. Noise level: under 50 DB for quiet use. Charging: USB magnetic charging for compatibility with common USB power sources. Water resistance: IPX7 rated for full short-term submersion. Practical use scenarios Daily pelvic floor training: use the single-ball harness with the 21 gram or 29 gram ball for short kegel sessions to build endurance and strength. Progressive strengthening plan: start with the 11 gram vibrating ball to learn proper contraction, then combine weights in the double harness as strength improves until reaching the 58 gram maximum. Relaxation and intimate moments: use the 11 gram vibrating ball and remote-controlled modes during partnered play or solo sessions in the shower for added stimulation. Specifications Product: Kegel Balls Model: SHD-S354-2 Weight: 0.15 kg Decibel: under 50 DB Material: Medical Grade Silicone Rechargeable: USB Magnetic Charging