Keep up with clients who stay on the go with these evolve wireless earbuds! With high definition Bluetooth 4.2 wireless technology and built-in microphone with volume control, they pair with devices from up to 30 feet away for enjoyment of dynamic stereo sound or reception of hands-free calls. They work with most audio devices and have LED indicator lights. The hands-free design lets users press the earbuds to advance through selection and answer or end calls. The magnetic charging base can be used for storage and is charged by placing it on top of a wireless charging pad or with the micro USB cord included. Recipients will be dying to link with your brand!