Hands-free: Neck-mounted style Quick installation: Few components Large 140° wide-angle lens Extensive breast pumping: Variable frequency soothing Nipple retention: No displacement No disturbing sleep: Low-pitched operation Functions: Alternating Massage: The device switches to massage mode upon power on, lasting two minutes. High-frequency, cyclical stimulation of the nipple and areola at 80-160 /minute stimulates breast milk secretion. Alternating Pumping: After the massage, the device automatically switches to pumping mode for slow, deep sucking at 30-70 /minute. The device automatically shuts down if a single operation exceeds 30 minutes. Simultaneous Massage: The device uses a multi-frequency massage to relax the nerves, soften the nipples, and unclog the mammary glands to relieve pain. Simultaneous Pumping: The device uses gentle, fast-frequency to stimulate milk secretion and induce milk . This provides a more efficient and smoother inflow and outflow experience than standard pumping. Color: As Shown Material: Polypropylene (Pp) Package Contents: 1 * Electric Breast Pump 1 * Charging Cable 2 * Leather Cups 1 * Instruction Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.