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 ...
Improved comfort and sound quality Better noise-canceling and voice-calling performance Sturdy design Support for aptX Adaptive audio codec for Android users ...