Alesis AmpCase headphone maximizing amplifier makes your iPhone 4 sound awesome, giving you maximum volume and tone. Alesis AmpCase makes your iPhone 4 sound like it should so you can finally experience music as it was intended to be heard. AmpCase receives a direct injection of unadulterated, noise-free audio directly from your iPhone’s 30-pin dock connector. This unrestricted and uncolored signal enables you to enjoy the full dynamic range of any song. Alesis DSP technology pushes the best output to your headphones, with improved presence, punch and power.
AmpCase's linear power amplifier drives signal-thirsty headphones with authority and tone. Enclosing the iPhone completely, AmpCase includes contoured cutouts for all of your iPhone’s controls. A large wheel on the side gives you precise, continuous volume control, and a mini USB jack lets you charge your iPhone without removing it. Alesis AmpCase features a sleek, protective design with a brushed metal finish and a trim profile that perfectly complements your iPhone.