Noise Cancelling Bluetooth Headset / Clear And Natural Sound / Easy Set Up With Voice Menu # All Bluetooth earpieces are not created equal. Introducing SmartTalk Bluetooth, with dual Microphone design and industry-leading noise-cancellation technology from STEP Labs, Inc., to filter out and ignore wind and external noises. Smart tech compares the Sound from twin built-in mics to tell the difference between your voice and background noise, and filter it out. Your voice sounds clear and natural on the other end. A comfortable, sound-isolating in-ear fit makes incoming conversation easier on your end, as well. Also Griffin added human voice confirmations to make SmartTalk easy to set up and use. No more beeps and bleeps; instead a pleasant, human voice confirms every operation. 30 to 50 DB signal-to-noise improvement # Industry-leading noise-cancellation from STEP Labs and dual-microphone design eliminates unwanted noise # In-ear fit and sound isolation guarantees inbound Audio clarity # Human voice confirmations in English or French (user-selectable) and super-simple setup # AC wall Charger with USB micro cable