Sony Ult Wear Wh ULT900N Forest

The Sony ULT WEAR (WH-ULT900N) Forest Gray wireless over-ear noise-canceling headphones combine Sony's Integrated Processor V1, custom 40 mm neodymium drivers, and two selectable ULT1 / ULT2 POWER SOUND bass modes inside a foldable 255-gram Forest Gray matte chassis with up to 30 hours of ANC battery life.

ULT1 & ULT2 bass modes with 40 mm high-compliance drivers

Designed for listeners who want deep low-frequency weight without losing vocal clarity, the WH-ULT900N houses a custom 40 mm dome driver unit engineered for high low-end compliance across a 5 Hz – 20,000 Hz frequency response (extending to 20 Hz – 40,000 Hz over LDAC 96 kHz / 990 kbps). Pressing the physical ULT button on the left earcup shifts between ULT Off, ULT1 (deep sub-bass extension and low-end resonance), and ULT2 (punchy, dynamic bass attack). Through the Sony Sound Connect (Headphones Connect) app, users can also tailor a 5-band custom equalizer, adjust Clear Bass levels, and enable LDAC high-bitrate Bluetooth streaming, DSEE upscaling, and 360 Reality Audio head tracking.

Dual Noise Sensor ANC, Integrated Processor V1, and Wind Noise Reduction

Feedforward and feedback microphones on each earcup work with Sony's Integrated Processor V1 to suppress low-frequency transit drone and office HVAC noise, while a dedicated Wind Noise Reduction structure around the exterior mics reduces wind turbulence during outdoor walks and phone calls. Switching to Ambient Sound Mode provides 20 adjustable transparency steps with optional Voice Passthrough in the app, and placing a hand over the right earcup engages Quick Attention to lower playback volume immediately when speaking to someone nearby.

30-hour ANC battery, Multipoint Bluetooth 5.2, and foldable travel case

The 255-gram frame uses thermo-foaming earcup cushions that conform gently around the ears, an internal capacitive wearing-detection sensor for automatic pause/resume, and capacitive swipe/tap gestures on the right earcup. Wireless connectivity covers Bluetooth 5.2 with 2-device Multipoint, Google Fast Pair, and Microsoft Swift Pair. Battery life reaches up to 30 hours with ANC on (up to 50 hours with ANC off) with a 3-minute USB-C quick charge providing up to 90 minutes of listening, and the inward-folding hinges pack flat into the bundled zippered hard case along with a 1.2 m 3.5 mm stereo cable (314 Ω active / 32 Ω passive) and USB-C charging cable.

Bangladesh buyer checklist

Before purchasing the Sony ULT WEAR Forest Gray (WH-ULT900N/G) from any seller in the BiponiBD catalog, confirm the exact Forest Gray part code on the sealed box, verify the colour-matched carrying case and cables, and check seller warranty coverage.

Official references: Sony Official ULT WEAR (WH-ULT900N) Specifications.