Premium Sound Designed to hi-fidelity standards utilizing aluminum cone neodymium drivers for clarity, ported speaker housings and advanced Maxxbass technology for an enhanced bass response while minimizing distortion. The result is the best sound in its category. A six-button remote control allows the user to dance or rock-out well across the room. Extreme Compatibility Made exclusively for the iPod®, the included universal adapters custom fit any generation iPod® with docking capacity. Non-docking iPod®'s, as well as most other mp3 players, work using the included stereo connector. Elegant Portability Housed in a specifically engineered hard case, it not only protects the speakers and your iPod® while traveling, it also serves a speaker cabinet, thus producing better audio output. Inside the case you will find a convenient pop open door that will serve as storage for any size iPod® and a second storage compartment that houses the lithium ion battery and room to store your earbuds and remote control. Modern Design The contemporary design is a perfect fit for the home or the office. The black on black color scheme compliments just about any décor and the rugged engineering also makes this a perfect companion for any outdoor activity. Superior Battery Powered by a premium three phase lithium ion rechargeable battery it also includes auto standby power mode when idle and convenient battery charge display lights. Average battery life is a remarkable 15 hours. Can also be powered using the included AC adapter. Remote Control Conveniently stored in the iF2 the remote control allows you to turn your iF2 and iPod on/off and to control volume and advance tunes up to 15 feet away. What's Included: I-F2 unit Carrying strap AC adapter 4 adapter sleeves 1/8th" input cable User manual Quick set-up guide Input #1 iPod docking connector Input #2 1/8th" (3.5mm) mini stereo jack Frequency Response 120Hz-20KHz Signal to Noise Ratio 85dB±2 (0.5M & 1W) Impedance 12O Speaker Channel 2 channel stereo output Output Power 2W× 2 Speaker Drivers Neodymium- magnetic drivers Battery Rechargeable lithium battery Rechargeable Battery Capacity 2000mAH Playing Time 15 hours Charging Hours 6-8 hours Box Dimensions 11 3/8"w X 9 7/16"h X 5 ¼"d Weight 4 lbs