The sock fully protects the iPod, there are no holes for screen or buttons;
Bottom of sock is sewn shut to hold your iPod from falling out, top is wide open for easy access.
Frequency Channel: 205 selectable; channels (88.0 to 108.0 MHz);
Working status: LCD BLACK LIGHT indicator;
Compatible with all audio device such as iPod, iPod mini, iPod nano, any MP3 player and CD Player ;
Thermometer and Time Display function;
Operating Range: 30m (a distance of feet or less will minimize interference and provide the strongest signal );
Operating Current : 38mA ;
Power by 2x AAA batteries OR car cigaret te lighter socket.
Emergency charger: Does not need the fixed power source, regardless of body in where, also may be the cell phone charge, and may let the cell phone chargr conversation in the moving