Open box, New Beautiful design & Beutiful Sound from Harman Kardon 12hrs of Continuous Music Retractable cable Adjustable bass Features & details Tone Bass – enjoy adjustable bass on the earbud for the ability to turn on/off boost bass when desired Harman Kardon Signature Sound – appreciate exceptional audio with sound quality targeted for true music lovers Metal Layer Speaker Technology – experience less distortion for clearer highs and more natural sounding audio Advanced Voice Capture Solution – capture the caller’s voice while reducing unwanted ambient noises Body-Contoured & Lightweight Design – feel the comfort of a contoured, lightweight design. Refer user manual for troubleshooting steps.Talk Time Up to 15 hours, Music Play Time Up to 12 hours, Standby Time Up to 25 days