Nobu Saki. Exclusive touch-sensitive "Temperature Sensor System" increases vibration intensity as body heat is detected by built-in sensor during use. Velvety smooth, ergonomic shaft with clit-stem and larger head/tip. Quiet 3-motor system (2 in shaft, 1 in clit-stem), choice of 10 vibration levels activated via push-button. The SAKI is constructed of top quality, odorless, body friendly silicone. Lightweight. splash-proof and rechargeable via USB connection or A/C power supply. The heavy duty Li-ion battery allows for up to 3 hours between charges. Materials: medical grade Silicone / ABS (base/handle). Temperature Sensor System, clit-stem vibe, 10 levels of vibration, top quality silicone, 3 motors, USB/AC power recharge, 8½" x 1 1/2", splash proof.