Wearable Breast Pump with Cellphone App Control】 R1 hands free breast pump can connect to your cellphone via Bluetooth. Just with a specific cellphone app, you can monitor the pumping time, saving your preference pumping mode, you no longer need to control the modes & intensity by reaching your hands into your bra and pressing the physical buttons. Free from embarrassment & true hands-free. 【Breast Pump Provides Sucking Sensation like a baby】 After studying the suction power and frequency of over 100,00 babies, the Antsiya R1 pump simulates 4 suction modes, with 33 levels of intensity in total. Reduce pain & increase the milk production and efficiency of new mothers by simulating the baby sucking milk with bionics. We recommend you select massage mode first then start pumping with your preferred mode & intensity. 【Easily Place It in Nursing Bra and Extra-Low Noise】 The ergonomic low-profile design allows you to comfortably place this wearable breast pump in a nursing bra without pressure. With an innovative silent pumping motor, it won't disturb a sleeping baby, nor make strange noises while you are using it in public. The built-in bra adjustment buckle helps to improve Wear your breast pump well. 【Safe and Reliable Breast Pump with Food Grade Silicone & Anti-Leak Design】All parts of the Antsiya R1 breast pump that come into contact with human milk is made of food-grade silicone, which is safe to use and easy to clean. Meanwhile, all the parts are snug fit, worry-free wasting milk leaking out of the bottle. 【Portable Electric Breast Pump】 Built-in 1200 mAh rechargeable battery & type C charging port, no longer worry about low battery when you carry the wearable breast pump outside. You can charge it with a power bank or other methods easily. The package comes with a storage bag to help you easily pack it and have a good trip with your baby. 【Pumping with more mobility & freedom】 Thanks to the latest structural design, the mother can express breast milk in a more comfortable position, such as leaning on the sofa, bed, or other places (the angle of the back does not exceed 45°) Antsiya electric pump has an all-in-one pump design. Frees you from complicated tubes & wires compared to the traditional pump. 【MOST IMPORTANT THING BEFORE PURCHASE】 Please select the CORRECT SIZE of the flange before you place the order, we recommend you measure the nipple size following the instruction, we provide 24mm & 27mm flange: for the customer less than or equal to 24mm, please purchase ‘24mm flange’; for the customer from 24 to 27mm, please purchase ’ 27mm flange’.