Woodnote employs a PU surround and birch dome leveraging wood's unique internal damping properties and rigidity to deliver a warm, natural, and detailed sonic texture.

D-Major adopts a distinctive design: though some see a “D,” it more closely resembles a refined horizontal U. Its mirror-polished metal faceplate delivers a premium look.

Sigma is Twistura’s first hybrid IEM, featuring a bullet-shaped design. Priced under $70, it offers a neutral yet musical tuning with a clear focus on vocals.