Nano2433

Hi, I already own a pair of Anc700bt, but I'am thinking of getting a wired headphone(Audio Technica ath-M40x). So three quick questions, which one sound better? It worth the time(and money) of reselling my anc700bt to get a pair of M40x? Or do they sound similar? Don't start with the m50x or any other headphone please, I just want to know which one of this two sound better. thx