Do not miss a thing! The Geemarc CL7350 OPTI Clip Additional Headset and Charging Base for CL7350 OPTI Clip is an additional headset and charging base for the CL7350 Opti Clip. Provides Crystal clear, amplified sound with adjustable tone and volume. The Opticlip is incredibly lightweight and comfortable to wear. Listen up to six hours on a single charge. It is easy to connect and installs within seconds right out of the box. As an added bonus the Opticlip also features a built-in microphone to amplify the conversations around you.