Ultra High Quality Audio (UHQA) technology delivers a true 24bit digital audio experience with up to 2x wider frequency range than standard CD-quality wireless sound. Combined with noise-isolating ear gels, listeners experience vivid, concert hall sound. UHQA is compatible with select Samsung Galaxy devices. The 13mm Dynamic and 13mm Piezo speaker units deliver high-quality, clear sound. The dual-microphone noise reduction and echo cancellation reduce outside sound interference and feedback during calls. The ergonomic around the neck design of Level U PRO provides a comfortable way to keep your music and calls accessible. Ultra-soft, ergonomic ear gels and splash & sweat resistance** make it ideal for the active listener. Control call and music functionality intuitively by way of smart magnets in the earbuds – start/pause music and answer/end calls when magnets are connected or disconnected. You can even share your music with Sound Share, a feature that allows you to share audio with a second Level U PRO, Level On Wireless PRO or Level On Wireless headset. Use your Samsung Level U PRO Wireless headphones with the Samsung Level app. It provides additional features such as SoundAlive (Sound Effect), Volume Monitor and Text-To-Speech when connected with Samsung Bluetooth headphones. (Some features in this app may not be supported depending on your device.) Developed by Samsung, SoundAlive is a specially tuned up sound equalizer developed to provide a richer, fuller sound.