We've been waiting for a sequel to the outstanding Sony WH-CH720N noise-cancelling wireless headphones for some time, and it looks as though our prayers may finally be answered in the coming months. According to an often-reliable inside source, thewalkman.blog, recent import filings have revealed that a new pair of headphones is set to replace the Sony WH-CH720N, and will be called the "Sony WH-CH730N". The filing also reveals the new colours for the upcoming sequel, with 'Black', 'White', 'Pink', 'Blue' and 'Beige' all listed. That's broadly the same as the finishes found on the established WH-CH720N, with 'Beige' representing the only new addition. Read our review of the cheaper Sony WH-CH520I thought this simple upgrade would elevate Sony's WF-1000XM6 wireless earbuds – I was wrongOur pick of the best over-ear headphones