Durosonic PRO Series Noise Reduction Headset for Bluetooth Compatible Phones Ultra-Soft ComplyTM Foam Tips stay in the ear - No more falling earpieces Passive noise reduction technology - Seals out unwanted background noise High quality noise cancelling microphone - Improves communication in noisy environments Ultra lightweight frame (2oz.) is designed to be stable and comfortable all day with hats, glasses, goggles, and helmets Unique patent-pending design can be worn on the left or right side