As Vision Ears' first circular iron hybrid headphone, AURA partners with Astell&Kern with an uncompromising spirit and each company's proprietary technology. AURA utilizes the most advanced techniques and carefully crafted drivers' materials and layouts, allowing the 9BA and 2DD to adopt circular iron hybrid structure to blend together, achieving an overwhelming sound imaging effect. Paired with five-way crossover technology, through precise circuit board routing design, it avoids high-frequency distortion problems caused by overloading of the super high-frequency BA, accurately transmitting sound signals to the units of each frequency band, providing perfect triple frequency response and balance.

Due to AURA's integrated metal body, the manufacturer also carried out detailed precise calculations and research on the internal volume of the headphones. A special chamber design was used to balance the transmission speed of the units and musicality, allowing the two moving coil units to match each other, greatly reducing the discontinuous problems caused by phase deviation.

AURA uses Swiss 6061-T6 aluminum alloy for both the panels and outer shell material. Unlike ordinary aluminum metals, 6061 aluminum alloy has superior ductility and toughness, widely used in aerospace equipment or precision electronic instruments. During the entire aluminum alloy smelting process, casting defects such as shrinkage pores, sand eyes, and gas inclusions are easy to occur. When subjected to T6 heat treatment, it can eliminate gas pores on the aluminum alloy surface layer, making it not only light and solid, but also greatly enhancing the metal strength and corrosion resistance of the aluminum alloy, improving the stability of the metal structure, thereby reducing sound resonance to achieve low distortion. Combined with its high rigidity characteristics, it provides clear and accurate sound details.

Each outer shell requires thousands of hours of craftsmanship to produce through multiple complex processes by artisans. The raw material undergoes independent oil sealing treatment, and then the outer shell surface undergoes special sandblasting and polishing treatment by hand to fine-tune it. Through the anodic oxidation process, an oxide film is formed on the surface. Finally, a warm gray customized coating from Vision Ears is added, piecing together an exquisitely crafted art piece as lustrous as a jewel, giving the outer shell a smooth, mirror-like satin feel.

AURA comes with two pairs of Effect Audio custom exclusive headphone cables, including a 3.5mm single-ended plug and a 4.4mm balanced plug. The cables adopt a four-core UPOCC single crystal copper + copper silver mixed braided cable, woven from two UP-OCC pure copper Litz conductors and two copper silver Litz mixed braided conductors, bringing extraordinary sound details to the headphones. Combined with Effect Audio's patented ergonomic optimization technology (EPO), it provides excellent flexibility and elasticity to deliver a more comfortable wearing experience without compromising sound quality.

AURA also includes a leather carrying case set, including a portable bag, headphone storage box and cable clip, all made of premium calfskin specially manufactured by European leather factories, providing soft and delicate textures as well as excellent durability, highlighting its nobleness and grace. For earpads, AURA is equipped with AZLA SE1500 earpads for a comfortable fit that contours closely to the inner ear canal for more refined sound.