First, there is THE STIMULATION PHASE
A fast-paced rhythm, about 120 cycles per minute, which stimulates the letdown.
Next, comes THE EXPRESSION PHASE
A slower rhythm, about 60 cycles per minute, that ensures a gentle and effective milk expression.
Infants instinctively understand how to express milk as fast and as effectively as possible. The research has demonstrated that babies begin feeding with quick jerky movements to stimulate the letdown. Once the milk starts coming, babies slow down and continue at their own pace.*

Mimics Natural Baby Behaviour. Physiological Rhythm: 2-Phase Operation:
Stimulation and Expression

*Wolff P: H: The serial organisation of sucking in the young infant Paediatrics 1968. 42:943-956. Kent, J. C., Ramsey D. T., Doherty, D., Larsson, M., and Hartmann, :E: Response of breasts to different stimulation patterns of an electric breastpump Journal of Human Lactation (2003) 19: 179-186. Mizuno K, Ueda A. Changes in sucking performance from nonnutritive sucking to nutritive sucking during breast — and bottlefeeding. Pediatr Res 2006; 59(5): 728-731
LACTEA Smart — the unique combination of benefits!