Yui Hatano - AV actress Sound recorded from the star sound This model is equipped with a private headphone headset with vibration motor 2. Full thrilling MAX 11 types of vibrating patterns Elegant design, comfortable to handle. Size: Width 8.8 cm. Length 20 cm. USB charging model Can be used for long time with intelligent warming system Just turn it on before using it for 3 minutes. The interior will warm up around 360 degrees. Helps to feel more like a real mouth This model is a waterproof can. Can wash the water straight away Keep to prevent dust from the silicone material. Long press = On / Off. Press the vibrating button Lv.1 to turn on the vibrator. Normal Press the vibrator Lv.2 to turn on the vibrator.