Read lots of reviews before buying (not sold by Koss in USA as of this review) as I had been pleased with my previously purchased (from Grooves.Land) TWS150i's but wished for on-ear volume control and a slightly more comfortable form factor. Absolutely worth the change / upgrade! Sound is excellent and balanced with a surprising bass punch (using Dolby Atmos app) and comfort is excellent as well. Bonus of volume control (in addition to previously available track change / call functions) was just icing on the cake! Very pleased with the phones and with G.L!