Bring Harmony into your life for a whole new experience. 8 powerful functions of vibration, pulsation, and escalation. Rechargeable with any USB device or charger. Ergonomically designed for versatile use. Auto-off feature. Sure-grip design. 1, 5-hour quick charge. Magnetic cover removes easily to reveal a securely covered USB port for charging. USB charging cord included. ABS with PU Cote (massager) Silicone (button). 5 x 2.25/12.75 cm x 5.75 cm.