The Spectra S2 is a double electric breast pump designed for personal use by breastfeeding mothers. Some of its features include:

1. Adjustable suction and speed: The Spectra S2 allow mothers to adjust the suction and speed to their individual comfort level, making it easier to express milk.
2. Closed system: The Spectra S2 features a closed system design, which helps to prevent backflow and keep the tubing and motor free from milk.
3. Rechargeable battery: The Spectra S2 includes a rechargeable battery pack, making it a portable and convenient option for on-the-go pumping.
4. Nightlight: The Spectra S2 includes a built-in nightlight, making it easier to use in low-light conditions.
5. Dual/single pumping capability: The Spectra S2 can be used as a double or single pump, allowing mothers to pump one or both breasts at the same time.
6. Customizable flange sizes: The Spectra S2 includes a range of flange sizes to accommodate different nipple sizes, making it more comfortable for mothers to use.

It is important to consult with a lactation consultant or healthcare professional to ensure proper use and hygiene of the breast pump, and to follow the manufacturer’s instructions for safe and effective use.