The Spectra S1 offers all the benefits of the S2, but with the addition of an internal, rechargeable, lithium battery which allows for about 3 hours of pumping time per charge.
- 2 storage bottles
- 24 mm and 28mm flanges (may be exchanged for 32mm at no charge if returned unopened)
- Digital Display with last setting memory
- Stimulation Phase
- 2 setting nightlight