Experience shared pleasure with the EGO by Jopen e4 Male Premium Prostate Massager, a premium silicone prostate massager. This rechargeable prostate massager reaches complete charge in 3 hours because of the premium rechargeable lithium ion battery. The e4 is unscented, non-porous, and hypoallergenic with a satin finish and virtually seamless. The EGO e4 has intense incremental speed control and is whisper quiet and features an instant on/off button. It also features a security travel lock and LED indicator light. 100% waterproof and 100% silicone. Powered by PowerBullet. Universal USB cord included. One year warranty. 3.5" (probe). 4.25" x 3" (overall).