TTH1012: Features: -Includes wall bracket which MP3 player easily attaches and removes from to allow for mounted and/or portable use. -Includes USB cord to download music. -Approximately 75 hours of play time with included 4 AA batteries allows for years worth of 10 minute showers without having to change the batteries. -Water-resistant for use in showers, poolside and anywhere outdoors. -Brilliant sounding speakers deliver crisp music that fills the room. -Internal 2GB memory will hold approximately 500 songs (of average length and quality). USB Port: -Yes. Wireless: -Yes. CD/MP3 Player: -Yes. Water Resistant: -Yes. Product Type: -Portable speaker. Outdoor Use: -Yes. Primary Material: -Plastic. Dimensions: Overall Height - Top to Bottom: -3. Overall Width - Side to Side: -6.5. Overall Depth - Front to Back: -2. Overall Product Weight: -0.71 lbs.