Whisper-quiet waterproof vibrator features 7 functions with incremental speed control. Made of premium silicone, it is unscented, non-porous, and hypoallergenic, with a virtually seamless satin finish. Universal USB charging cord included for rechargeable lithium ion battery. Runs for 3 hours on low speed, 45 minutes on high. Complete charge in 2.5 hours. Security travel lock prevents accidental "on." Length is 7 in., width 1.5 in.