Features： Imitate the baby's feeding pattern, at the beginning of milk suction process, high frequency mode will gently stimulate milk lactation, when the milk starts flowing, it will change to slow and deep suction, reducing suction time by 50% and increasing milk secretion by 30%. 2 modes (breast pumping & massage) and 5 levels of suction for option, always gives you the most comfortable milk sucking experience. The memory function will remember the settings used last time, making your milk pumping more efficient. Wearable design, freeing your hands for housework, playing with your lovely baby, and more; compact size, easy to assemble, suitable for using at home, office, during travel, etc. Made from premium ABS, PP, and silica gel, eco-friendly and skin-friendly; low noise, will not disturb the sleeping baby. Built-in 800mAh large capacity battery with long working time, no trouble of frequent charging. Specifications： Color: Pink, green & grey(optional) Material: ABS, PP, and silica gel Battery Capacity: 800mAh Input Voltage: 5V/1A Operation Temperature: +5~30℃ Storage Temperature: -20~60℃ Operation/Storage Humidity: 15~90% Operation/Storage Press: 70~106Kpa Product Size: 15 * 11 * 8cm/ 5.9 * 4.3 * 3.1inch Product Weight: 243g/ 8.5oz (Single One) Package List： 2 * Electric Breast Pump with 24mm Silicone Cover 4 * Bra Adjustment Buckle 4 * Plastic Ring 2 * Charging Cables 1 * User Manual (English)