RCA RP7887 Super Radio 3 High performance Super Radio III - still the best in terms of long-range performance and sensitivity 2-way speaker system - the built-in 2-Way speaker system is driven by a 6.5" high sensitivity woofer and 2" cone tweeters Separate bass and treble controls - leaves the control to you by providing separate bass and treble controls Thumbwheel tuning controls - provides convenient and accurate tuning control External AM/FM antenna terminals - easily connect your own antenna A high performance SUPER RADIO III AM/FM radio is still our best long-range performance and selectivity radio 2-Way Speaker System The built-in 2-Way speaker system is driven by a 6.5" high sensitivity woofer and 2" cone tweeters 2-Way Power with Automatic (AC/DC) Switching Automatically switches from DC to AC when the unit is plugged in to avoid using battery power Separate Bass and Treble Controls Leaves the control to you by providing separate bass and treble controls