Worse than the terrible hardware controls on the actual headphones. The only device i ever owned, for which i needed the user manual every time i just wanted to turn off the damned device. And yes, i have lots of British hi-end audio equipment. Much worse than the previous app, which was terrible in its own right. This application will hide every useful function in different, impossible to find and navigate to screen, and will forget your device and preferences every time. No reasonable hierarchy is presented, no visuals to explain anything, all graphics serves only one thing —- marketing and sales iconography pf the brand. There is absolutely nothing in this app for you, the owner of headphones and user. Only for the company. The headphones sound fine, even with bluetooth connections and thats why i bought them. Now i’m stuck with their unbearable controls and worst iphone app ever.