The Field OB4 Bag in Black by Teenage Engineering is a versatile instrument bag specifically designed for transporting the OB-4 Magic Radio. This practical shoulder bag features a mesh front pocket and a covered roll opening that facilitates access to the device while providing protection. The bag can be comfortably worn over the shoulder or held by the side handle, making it ideal for on-the-go use.

Additionally, the bag offers space for smaller everyday items, which can be securely stored in an interior pocket as well as in a rear pocket with Velcro closure. The simple black color gives it a modern and elegant appearance that fits well in various environments. The Field OB4 Bag is thus not only functional but also stylish and practical for anyone looking to transport their musical instruments and accessories safely.