Crezenn, Inc., (formerly GG Kaiser.com) 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. Product Detail;2) Wireless FM Transmitter (MuzFull-300)The MuzFull wireless FM Transmitter is an essential accessory for the user of digital audio players. It is compatible with a wide range of any audio players like MP3 player, CD, cassette player, PDA, PC, laptop and home audio component, allowing you to share the music and share the fun. Just plug the FM Transmitter into the headphone jack of your portable audio players and tune your car stereo or our wireless headset to the clearest FM frequency. 3) Wireless Headset (MuzRon RF-100)Advanced ergonomic and lightweight wireless FM headset!!! MuzRon is stylish and comfortably designed for use in the office, at home and even on the street. Especially this headset would be an ideal for a pedestrian or a jogger who wants to enjoy digital music wirelessly, while taking a walk or going in for jogging. Enjoy the wireless freedom with MuzRon by pairing with our MuzFull FM transmitter.