Features: 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, matching baby,#39;s feeding pattern. 3 modes (automatic expression, massage, ,amp; expression) and 16 levels of suction for option, easy to adjust through screen-touching and digital display, always gives you the most comfortable milk sucking experience.,nbsp; Wearable double breast bra design, freeing your hands for housework, playing with your lovely baby, and more; the memory function will remember the settings used last time, making your milk pumping more efficient. Made from premium ABS, PP, and silica gel, eco-friendly and skin-friendly, even don,#39;t need to wear bras; 35dB low noise, will not disturb the sleeping baby. Built-in 800mAh large capacity battery with long working time, no trouble of frequent charging; no complicated assembly, very easy to use. Specifications: Color: Transparent ,amp; white ,amp; blue Material: ABS, PP, and silica gel Input Voltage: 5V/1A Operation Temperature: +5~30°C Storage Temperature: -20~60°C Operation/Storage Humidity: 15~90% Operation/Storage Press: 90~106Kpa Capacity: 250ml Battery Capacity: 800mAh Rated Current: 2000mA Rated Frequency: 50Hz Product Size: 12.8 * 10.7 * 4cm/ 5.03 * 4.2 * 1.5inch Product Weight: 231g/ 8.1oz Package Size: 18 * 16.5 * 16.5cm/ 7.08 * 6.4 * 6.4inch Package Weight: 748g/ 26.3oz Note: AC adapter is not included. Package List: 1 * Pump Motor,nbsp; 2 * Milk Collector 2 * Silicone Tube with Plastic Case 2 * Bra Adjustment Buckle 1 * Charging Cable ,nbsp;