Hospital strength performance with two modes of pumping Battery-operated, lightweight, and clips right onto a waistband, purse pocket or favorite yoga pants Wide range of suction and speed settings, functions and flange sizes Operates at less than 45dB and allows for discreet pumping anywhere Ameda's HygieniKit true closed system not only helps protect breast milk from backing up into the tubing but also prevents the system from potential contaminants like bacteria, viruses and mold growth Up to 250 mmHg suction strength Large, backlit digital LCD display Timer display easily tracks pumping time. Smart auto power off after 45 minutes Two-phase adjustable suction modes: Stimulation (six levels) and expression mode (12 levels) 2-minute auto switch to expression mode Adaptable for single or double pumping Operates on four AA batteries or AC adapter Features Ameda HygieniKit milk collection system Compatible with Ameda's CustomFit™ flange system 2-year limited warranty with Ameda ParentCare Support Package/UOM: Each (EA); manufacturer item 131W51; UPC 810725025093.