Sony WH1000XM4/S sku-17903110002 313028036099 Headphones

Sony WH1000XM4/S over-ear headphones are listed as Computer Accessories under SKU sku-17903110002 and UPC 313028036099. They are brand new with a USA warranty; the catalog number is SNWH1000XM4S. Two microphones on each earcup feed ambient sound to the HD Noise-Canceling Processor QN1. A Bluetooth Audio SoC and an algorithm analyze sound over 700 times per second.

The headphones also have a Personal Noise-Canceling Optimizer and Atmospheric Pressure Optimizing for use during air travel. The Sony Headphones Connect app adjusts Ambient Sound Control so sounds such as announcements can come through. LDAC transmits approximately three times as much data as conventional Bluetooth audio at a maximum rate of 990 kbps.

A built-in analog amplifier supports low-distortion playback. The 1.57-inch Liquid Crystal Polymer drivers reproduce frequencies up to 40 kHz, and the headphones restore detail in compressed audio files. Battery life is listed at 30 hours, with Quick Charge, hands-free calling, voice assistant capability and 360 Reality Audio support. Foamed urethane ear pads distribute pressure for a stable fit.