Comfortable fit. Large plush ear cups provide superbly comfortable headphones which are ideal long listening periods, with noise-isolating qualities of a closed back headphones. The Wave ZX features larger and more comfortable ear cups than the Wave S1, providing better noise isolation and comfort. Audio perfection. The PSYC WAVE ZX is powered by large 50mm driver with large diaphragms that provide crystal clear and rich audio with deep powerful bass. The headset is built with convenience in mind with buttons to answer call, volume control and skipping track. Wireless and Portable. Fully wireless connections provide a cable free solution for your Wave ZX headset. The Bluetooth 4.0 is an energy efficient chipset that provides longer playback hours; the WAVE ZX can provide up to 15 hours of audio playback! Has built in 3.5mm AUX port. The built in AUX port gives you an alternative wired input