The Walkers Ultimate Quad Connect are more than just protection for your ears, they allow you to sync your mobile device, including your phone using Bluetooth so you can take an incoming call while out on the range. You can even listen to music, a pod-cast, and other media all through the Bluetooth functionality. All the protection you require with added features you will love.FeaturesBluetooth Sync with mobile deviceIntegrated communication micMake and receive phone calls through headsetFour Hi Gain Omni Directional MicrophonesLow noise/frequency tuned for natural sound clarity9x hearing enhancement2 independent volume controlsSound activated compression (SAC) -.02 second reaction timeCompact folding designSound dampening composite housingPower source (2) AAA batteries (included)