Sony WH-ULT900N Wireless Headphones (Black)

Sony WH-ULT900N Wireless Headphones (Black)

The Sony WH-ULT900N, sold as the ULT WEAR, is the headphone that launched Sony’s ULT POWER SOUND series. It is a closed-back, over-ear wireless headphone built around one idea: bass you can feel, delivered by a specially developed 40mm driver and a dedicated ULT button that reshapes the low end at a tap. Around that headline feature, Sony has fitted the same Integrated Processor V1 used in its flagship noise cancelling line, so the ULT WEAR pairs its party trick with serious noise cancelling, long battery life and polished everyday features.

Despite the bass focus, this is not a one-note headphone. The driver keeps vocals and detail intact, DSEE upscaling restores high-frequency information lost in compressed streaming files, and support for LDAC means high-resolution wireless playback from compatible phones and players.

Key Features

• ULT button with two bass settings: ULT1 Deep Bass and ULT2 Attack Bass
• Digital noise cancelling using Dual Noise Sensor technology and the Integrated Processor V1
• Battery life up to 30 hours with noise cancelling on, up to 50 hours with it off
• Quick charging: a 10-minute charge adds up to 5 hours of playback
• Bluetooth 5.2 with multipoint connection for two devices at once
• Hi-Res Audio wireless playback via LDAC, plus DSEE upscaling and 360 Reality Audio
• Wearing detection pauses music when you take the headphones off
• Precise Voice Pickup technology for clear hands-free calls

Two Kinds of Bass, One Button

ULT POWER SOUND is Sony’s answer to listeners who find most noise cancelling headphones too polite in the low end. Pressing the ULT button cycles the tuning: ULT1, labelled Deep Bass, adds weight and resonance to the lowest frequencies for hip-hop, EDM and film soundtracks, while ULT2, Attack Bass, firms up the punch for a more energetic, driven sound. Turn it off and the headphone returns to a balanced signature that suits podcasts, acoustic music and calls. Because the setting is a physical button rather than an app-only feature, you can change the character of the sound mid-track without reaching for your phone.

Noise Cancelling That Adapts to Your Day

Two microphones on each side feed Sony’s Dual Noise Sensor system, and the Integrated Processor V1 generates the cancelling signal. The result is strong suppression of engine drone, traffic and office hum. When you need awareness instead, Ambient Sound mode lets outside sound in, and Adaptive Sound Control in the Sony Sound Connect app can switch settings automatically based on your activity and location. A fold-flat design and a weight of about 255 g keep the ULT WEAR comfortable on long journeys, and passive operation means the music continues through the supplied cable even when the battery is empty.

Who the ULT WEAR Suits

Choose the WH-ULT900N if you commute daily, listen to bass-led music, and want flagship-style noise cancelling and battery life without flagship pricing. Multipoint Bluetooth makes it easy to run a laptop and phone together, Precise Voice Pickup keeps your voice clear on calls in noisy streets, and the custom equaliser in the Sound Connect app lets you fine-tune the sound after the ULT button has done its work.

The full technical specification for the Sony WH-ULT900N is listed in the Additional Information table on this page.