Audio-Technica recently launched a $199 wireless version of its M50x headphones (the M50xBT) and now it is doing the same for a popular budget model. The M20xBT is a wireless version of the top-selling M20x wired headphones. The M20x lacks some of the design features of the M50xBT like the ability to fold them up. It uses professional-grade ear pads and headband material, and comes with 40mm drivers for enhanced low frequencies. This model has a key feature that allows you to connect two devices at the same time. There is a low latency mode to ensure audio and video are synchronized, and to limit audio lag for gaming. They have a 60-hour battery life on a full charge and up to three hours on a 10-minute rapid charge. You can control calls, music and volume with the buttons on the left earcup. Audio-Technica doesn't offer any form of ANC, which is what you would expect for headphones in this price range. The M20xBT wireless headphones are available for pre-order at B&H and Amazon.