CINEMA FOR ONE -Designed for all types of media, 4th-generation Matrix headphones combine low latency technology with CinemaEAR audio enhancement to eliminate lip-syncing issues and provide the best possible audio performance not just for music, but also for movies and TV shows CINEMAEAR AUDIO ENHANCEMENT - Proprietary audio enhancement technology lets you switch between several hearing and sound enhancement modes at the touch of a button. Options include normal/balanced sound, Dynamic Music Mode, Bass Boost Mode, and two Clear Voice modes HEAR BETTER -High-resolution 40mm drivers deliver clear speech and dynamic bass while Clear Voice audio enhancement helps you hear dialogue in movies and TV shows better by boosting sound frequencies that improve clarity and speech intelligibility, even at lower volumes APTX LOW LATENCY TECHNOLOGY -Qualcomm aptX and aptX Low Latency codecs ensure maximum wireless audio quality and improve lip-syncing with compatible Bluetooth devices INCLUDES: Ultra-soft memory foam earpads, up to 30 hours of battery life, built-in headset with microphone and controls, charging cable, and stereo audio cable This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of Amazon Renewed, your destination for pre-owned, refurbished products: A customer buys a new product and returns it or trades it in for a newer or different model. That product is inspected and tested to work and look like new by Amazon-qualified suppliers. Then, the product is sold as an Amazon Renewed product on Amazon. If not satisfied with the purchase, renewed products are eligible for replacement or refund under the Amazon Renewed Guarantee.