Selling various earbuds, combined shipping available. Smabat ST-10 Used but in excellent condition. Pouch, silicone covers & foams are unused. Cable only used for burn-in. $70 shipped USPS first class or $73 priority mail. Yuin PK2 Used but in very good condition. Added a couple pairs of new foams and a pair of offset donut foams I made. $40 shipped USPS first class or $43 priority mail. ME80 Only selling as they don't fit my small ears well. They have about 150hrs burn in at normal listening volume (low-med) of the Jlab burn in file, and maybe 10-15 minutes in my ears before I noticed some discomfort and stopped using them. All accessories and foams are new/unused, I have extra earbud foams that I used instead of what it came with. $8 plus shipping. B40 x3 Again, just a bit larger than is comfortable for me. 1 pair has around 100hrs burn in with jlab file. All others new/unused. Foams on all 3 pairs are new/unused. $7 ea plus shipping. RY4S Has 150+ hrs burn in. All foams new/unused. $3 with any other buds. Shipping is approx. $5 usps first class or $8 priority mail. Spoiler: SOLD BK2 Again, fit issues. Good, very lightweight, mid centric earbud with mmcx. Has about 100hrs burn-in with jlab file. All foams new/unused. $22 plus shipping. (SOLD) PT15 Good all rounder with mmcx. Also has about 100hrs burn-in with jlab file. All foams new/unused. These came without a cable. $8 plus shipping. (SOLD) Will consider trade for smaller style earbuds, Westone AM Pro 10/20/30 or Westone W-series 10/20/30.