The Lilu Massage Bra is compatible with most electric pumps, with standard milk bottles. E.g.
Spectra: All models, including S1 and S2™
Medela: All models, including Pump in Style, Freestyle, Swing, Sonata™
Lansinoh™, Ameda™, Avent™, Motif Luna™, Hygeia™, Baby Buddha™
Unfortunately, the Lilu Massage Bra is not yet compatible with these brands: Willow™, Elvie™, Freemie™ or Pumpin Pal™ Flanges