$299 makes the Tour One M2 headphones relatively expensive, but a cheaper option than Bose or Apple products. If you wanted ...
There's also a new "Inverted-F Antenna," which bumps up the gain from 1.6 dBi to 2.91 dBi and replaces the previously-used chip antenna. The battery on the XM6 will remain the same, offering 3.8V as ...