Low-profile design weighing only 24 grams, offering all-day listening that won’t compromise your style. For quickly and conveniently stored in a pocket or bag, the flex collar packs up to one-third its size. A noise isolating fit enhances the rich, clear audio of Supreme Sound™ across all types of music. Listen longer and louder with 8-hours of rechargeable battery life. Bluetooth wireless with 8-hour rechargeable battery. Lightweight and low-profile around-the-neck collar. Call, track and volume control via the built-in microphone and remote.