This retro i Recorder for iPhone 4/4s/5 is the ultimate speaker system for you music. Its retro design & fully functioning buttons will remind you of the classic cassette players of the 80's & 90's. To use this novelty speaker just plug in your iPhone into the 3.5mm jack provided, pop your device into the cassette compartment & press play to listen to classic songs by Queen or Michael Jackson or whatever's on your iPhone. You can alter the volume, stop your tracks & even fastforward & rewind your music using the fully functioning buttons on your i Recorder. If it ever runs out of battery you can either replace the batteries or power it using a micro-usb cable (not provided) & for ultimate portability the i Recorder comes with a pull out handle to carry it with you wherever you go.