Estste fresh Harmon B Model Aluminum Trumpet Wow-Wow Mute is a high-quality mute designed specifically for brass instruments like the trumpet. Made by the reputable brand Harmon in the United States, this mute is known for its unique "wow-wow" sound, adding a bright and energetic tone to your playing. It is a popular accessory among musicians looking to brighten up their sound and add character to their performances.