Efficient: 2-phase rhythm, phase 1: stimulate milk flow, phase 2: efficient pumping, phases individually selectable Soft: infinitely adjustable for maximum well-being Soft: super soft silicone cushion with nubs for comfortable massage and optimal fit to the chest Flexible: mains or battery operated, includes removable plug / travel plug (worldwide). For 100-240V AC / 50/60 Hertz Includes Nuk First Choice + anti-colic silicone bottle teat, size 1 (0-6 months), S (extra fine punched), protective cap, screw ring, closure plate, base and Nuk breast milk container