(10) 3 inches 7W full range heavy-duty magnet speaker.
(11) Dynamic Bass compensation for rich bass.
(12) External AM antenna terminal to connect outdoors AM antenna
(USA version only).
(13) External F type FM antenna terminal to connect outdoors
FM antenna.
(14) Internal/External FM antenna switch to select built-in or
external antenna.
(15) 9-14 voltages power adaptor socket for AC adaptor or
vehicle/boat power.
GB
4