outerput power: 3W voltage: 5V 1. FM radio, build-in FM Stereo radio module and antenna, search FM channels and store automatically.2. AUX IN for iPad/iPhone/iPod, PC, Mobile, MP3/4, etc.3. High-tech intelligent double decoding, supports MP3/WMA format music. 4. TF card reader and player . 52800-009 MINI SPEAKER