CREZENN INC. Crezenn, Inc., founded and started business in 1999 manufactures and sells MP3 player and its accessories. Our new products debut in 2007 is based on our registered patent of transmitting and receiving signal by using RF technology (P.C.T. Patent:10-1999-0008500). Our products have proven to be the best in the industry at meeting customer requirements for quality and price. They are more than Bluetooth product.