Leaked Sony WH-1000XM4 listing confirms June 23 release date, no aptX support and last-generation QN1 noise-cancelling processor

The WH-1000XM4 has appeared online again, despite Sony still having not announced its next-generation headphones. In recent weeks, Best Buy and Walmart have listed the WH-1000XM4 on their websites before taking the headphones down. Now, Dell Canada has made the WH-1000XM4 available to order for CAD$499.99. According to the product listing, the WH-1000XM4 will start shipping on June 23. Dell Canada gives June 24 as an estimated ship date when we attempt to purchase the headphones, though. Either way, it seems reasonable to suggest that Sony will formally announce the WH-1000XM4 within the next two weeks.

The Dell Canada listing also confirms that the WH-1000XM4 will not support the aptX or aptX HD Bluetooth codecs. Dell Canada states that the headphones will only support LDAC, but we would expect the headphones to support at least SBC and AAC, too. The listing refers to the inclusion of an "HD Noise Canceling Processor QN1", which is the same processor that Sony includes in the WH-1000XM3. Dell Canada has reconfirmed that the WH-1000XM4 can connect to two devices simultaneously and that the headphones will have five microphones.

Additionally, the listing confirms that Sony has made no battery life improvements with its latest WH-1000XM headphones. Up to 30 hours of continuous playback with ANC switched on would still allow the WH-1000XM4 to outlast most of its rivals, though. Sony is expected to release the WH-1000XM4 in two colours for US$349, just as it did with the WH-1000XM3.