Sony's WH-1000XM4 noise-canceling headphones are expected to launch later this week, but that didn't stop a last-minute leak from surfacing online in the form of a promotional video.

In the Sony WH-1000XM4s promotional video below (via Android Police), you can see most of the rumored features and specs that were expected to follow the Sony WH-1000XM3.

The design of the Sony WH-1000XM4s doesn't look too different from its predecessor, but it does feature a QN1 processor and 40mm drivers and offers some clever upgrades under the hood.

The Sony WH-1000XM4 can connect to two devices simultaneously via Bluetooth, can be controlled with touch gestures, and lasts 30 hours on a single charge. With the class-leading Bose 700 lasting a much shorter 20 hours, this battery life could be Sony's big secret weapon in the can.

The rumored "Precise Voice Pickup" feature utilizes five built-in microphones to more accurately detect the wearer's voice when talking through the headphones. When the microphones recognize that the wearer is speaking, music will also pause with "Speak to Chat.

The clip also teases a variety of noise cancellation modes, from full active noise cancellation to ambient noise and announcement pass-through.

Expected to cost around $350, the Sony WH-1000XM4 headphones will replace the Sony WH-1000XM3 and may have a chance to take the top spot among the best headphones you can buy.