for SR30BT WS660BT Headband for a wide headphones provides a comfortable wearing and stable . Soft sponge component headband offering adjustable fit for any head size and ensures long wearability Stylish and simple lightweight and easy to carry. Suitable for music lovers, gamers and professional users who like to use headphones. For home, , traveling or outdoor sports, provides stable head so you can enjoy music, game or work for long time.