The invisible breast pump is small and lightweight to place inside your bra. Hands-free, more enjoyable and discreet way to express breastmilk. Features: Wearable breast pump, small and lightweight to place inside your bra, hands-free, more convenient to use. No tubes, no cords, no dangling bottles. No more pumping schedule. Pump anywhere anytime as you want to. All-in-one device. 3 modes (massage, express, mixed), each mode has 10 levels adjustable, choose the most comfortable level. Ultra-silent technology which create an atmosphere of flow vibration and low noise brings comfort to both baby and mother. Easy to assemble, and the components can be cleaned and disinfected in boiled water or steam except the motor. Made with food-grade plastic and silicone. One-way flow, no reverse flow. Anti-reflux design, reduce pollution. Built-in 1100mAh large capacity lithium battery, suitable for working, traveling and more. Specifications: Material: Silicone + ABS + PP Quantity: 1 Set/ 2 Sets (Optional) Color: White + Pink/ White + Grey(optional) Input: 5V 1A Mode: Massage (Red Light), Express (Blue Light), Mixed (Purple Light) Adjustable Level: 10 Levels Each Mode Battery Indicator: Green (31%-100%), Orange (11%-30%), Red (1%-10%) Built-in Battery: 1 * 3.7V 1100mAh Lithium Battery Cup Capacity: 240ml / 8oz Cup Diameter: 11.5cm / 4.5in Motor Size: 8 * 6 * 6.5cm / 3.1 * 2.4 * 2.2in Item Weight: 262g / 9.2oz Package List: 1 * Pump Motor 1 * 240ml/8oz Cup 1 * 28mm Silicone Breast Cover 1 * Membrane 1 * Valve Base 2 * Duckbill Valve 1 * Dust Cover 1 * USB Cable (Type-C) 1 * Storage Bag 1 * User Manual (English)