The 2 microphones technology will provide a high degree of clarity calls. The Jabra Sound Technology removes background noise for perfect sound of your voice. With its adjustable EQ, the Jabra Sound App, giving you the ability to personalise the sound of your music. The neckband wire which retains its shape. It remembers the shape of your neck, allowing the back into shape every time you fold it. With up to 8 hours battery life per charge kit, you can make calls and listen to music from morning until night. To stay in place all day.