The eufy Baby S1 portable breast pump features integrated heating technology with seven adjustable temperature settings ranging from 35 °C to 41 °C. This HeatFlow technology includes a built-in heating element and a precise temperature sensor that gently warms the soft silicone flanges during the pumping process. The pump offers clinic-grade suction power of up to 290 mmHg while operating extremely quietly at just 46 dB for discreet use. App connectivity allows for remote control and personalized pumping sessions through the eufy Baby app. The OptiRhythm technology enables precise adjustments of pumping rhythm, suction strength, and speed according to individual preferences. Designed for all nipple sizes, the pump includes flange sizes from 17 mm to 24 mm with an ergonomic 105-degree angle for comfortable positioning. The leak-proof construction features a secure double-seal system and a reinforced lower half, making it suitable for discreet use in a bra. All skin-contacting components are made from BPA-free, food-grade materials. The compact, lightweight design prioritizes user comfort and supports efficient milk production through customizable settings. This portable breast pump combines advanced heating technology with clinic-grade performance in a discreet, quiet package suitable for various breastfeeding situations.