Seen very little mention here on Head-Fi, but I am thoroughly enjoying the Pendulumic Tach T1. Haven't tried any other bluetooth cans other than Pendulumic Stance S+, so I don't have much to compare it to, but I can say, after a pad swap to some Shure pads (can't recall which model at the moment), these little on-ears deliver a nice, fairly clean sound. With original pads, the bass is a bit bloated, mids are a tad recessed with rolled off highs. Sounds a little congested. With the Shure pads, you get increased comfort (pads are a bit larger than stock pads) tighter bass, more extended treble and the mids come out more. Still maybe a touch bassy, but pretty balanced. Soundstage is expanded, too. It's small, very lightweight. Good battery life, too. I would easily recommend it (with pad swap, original pads not so much).