Materials: Silicone

Size:  160 x 35 mm

Power: USB Rechargeable (2 hours for full charge)

Vibration: 20 Kinds Vibration Frequency.Inhale and Exhale modes

1.Press ① and ② at the same time Until the piolt lamp is on .not flashing .to turn on it

2.Click  ① to change the Inhale and exhale speeds

3.Click ② to change the Vibation speeds

4..Press ① and ② at the same time until the piolt lamp goes off to close it