But I love them , true to size For me its a no brainer if youve spent more than £60 on your in-ears. After thinking they didnt have his size, I finally figured this out and bought the "Little Kid" 3. Drive unit: 1 Dynamic 10MM woofer + 4BA 6MM Tweeter5. La calidad de sonido es buena, no es comparable con Bose, sonos pero por el precio está ok. ANC:Open the "Wearable" app and sound adjustment is there for you to fiddle with, although basic its effective enough. But with the stretchable silicone gripper piece, my phone is totally secure, even on rough & rocky singletrack. Update March 2021: they stopped working and now the conpany is not even responding to my emails for replacement. The gel cushion is excellent and they ride high enough around my ankles so I feel supported. Speaking of usb.