Sony WH-ULT900N Specifications

Battery Life 30 Hrs NC ON, 50 Hrs NC OFF.
Discover ULT WEAR Noise-Cancelling Headphones.
110 dB/mW when connecting via the headphone cable with the unit turned On.
100 dB/mW when connecting via the headphone cable with the unit turned off
32 ohms 1kHz when connecting via the headphone cable with the unit turned off.
314 ohms 1 kHz when connecting via the headphone cable with the unit turned On.
Massive Bass : Press the ULT button to boost your bass & feel the incredible power of sound.
The ULT WEAR is designed to fit your style. Cool, comfortable, and built for powerful, high-quality sound.
With exceptional bass and improved noise cancelling, our new ULT WEAR headphones let you bring your favourite festival or club feel with you, everywhere you go.
With dual noise sensor technology and the Integrated Processor V1, ULT WEAR takes digital noise cancelling to the next level. Now you can truly shut out the world and enjoy a party for one—just you and your music.
The ULT WEAR exudes function, form and features. A sensor pauses your music when you take them off and starts again when you put them on, and Bluetooth® pairs with two devices at the same time. Ideal for everyday use.
Press the ULT button for powerful sound, thanks to the specially designed 40-mm driver unit and Integrated Processor V1. Enjoy precise, punchy, high-quality sound that gets you as close to the original recording as possible.