12 pcs: 6 Pairs S/M/L (B) Noise Isolation Comfort Eartips for Sie2 and Sie2i
Sie2, Sie2i. Soft material, perfect fit and comfort. QuietComfort 20, QuietComfort 20i, QC20, QC20i. Also Compatible with the Following In Ear Earphones and Headsets Series 1 and Series 2 Bluetooth.