The trumpet is in many genres of music, from classical to funk. However, most people know it as a jazz instrument. Players such as Louis Armstrong and Miles Davis won fame and fortune by blowing these horns. Whether you are a budding Satchmo, or you play in a marching band, you can find a wide variety of trumpets on eBay. Sellers offer well-known brands such as Conn and Yamaha trumpets. You can also find everything you need to play the instrument, from trumpet mouthpieces to cases.