Sony SBH80BK SBH80 Bluetooth Headset Worn on the neck, this Bluetooth wireless headset is perfectly balanced; two ultra-thin smart-memory metal strips rest lightly on your shoulders Superior Sony sound. The SBH80 has aptX audio enhancement - a high-quality audio codec designed to deliver a flawless wireless experience HD Voice ready. HD Voice, also known as wideband audio, lets the person you're talking to experience your voice as it really sounds.