The Crossfade Wireless went through years of precise engineering to design and tune wireless electronics while keeping the iconic V-MODA materials and shapes. V-MODA's tuning team sets the bar higher by improving the legendary Crossfade M-100 signature sound for virtually identical wired and wireless playback. Crossfade M-100 Sound, Wireless Freedom - Uncompromising means building on crowdsourced sound and 30+ editors' choice awards won by the Crossfade series and upgrading that signature sound into the best wireless headphones in the market. Go the Distance - Pair your Bluetooth device and enjoy your headphones up to 33 feet (10 meters)Simultaneous Device Pairing - Multitask and pair the headphones with two sources at a time, such as smartphone and laptop for work or smartphone and smartwatch for a workout. Unlimited Hours - Up to 12 wireless hours of music, 30 minute quick charge for 3+ wireless hours and unlimited hours in analog wired mode featuring virtually undistinguishable sound. Hybrid Wireless + Wired - Enjoy the best of 2 worlds: wireless for freedom, cabled when you run out of juice or demand zero latency pure analog audio for gaming, videos, music/DJ performance or a Hi-Fi DAC/AMP (connects to PS4 + Xbox One controllers).SpecsType - Over-Ear Bluetooth Wireless HeadphonesFrequency Response - 5 - 30,000HzWired Latency - 0msBluetooth - Low-Power CSR BlueCore featuring Hi-Fi ACC+, ACC, MP3, SBC codecs and OTA Flash ROM upgradeable featuresBattery - Up to 12 hours music playblack (depending on volume/music)Sensitivity - 107 dB @ 1kHz 1mWMicrophone Sensitivity - -42dB @ 1kHzImpedance - 30 Weight - 292g (with standard aluminum shields)