read the unit manual here - Brash Imports

SpecificationsSpecifications subject to change without notice.DISPLAY UNITLiquid crystal panel...............................................3.5 inchesNumber of pixels............................................... 76800 pixelsDisplay method.........................Transparent color filter formatDrive method.......................................................... LTPSTFTLight source.......................................................internal light(built-in small fluorescent lamp)RECEIVING FREQUENCY FIGUREAREA BAND FREQUENCYRANGE HZEUROPEAMERICAFMAMFMAM87.5-108.0M522-1620KAutoSteppingKHZ100987.5-107.9M 200530-1710K 10TinySteppingKHZ50920010GENERALSOUTH AMERICAFMAM87.5-108.0M520-1620K100 10010 10Operating power................................. ..12 Volts DC, negativeground%10THD output wiring.........................Designed for using fourspeakers only front and rearchannels cannot be combinedin use with 2speakers.Load impedance..................................compatible 4 to 8 ohmspeakersFuses............................................................ ..........10 ampDimensions.........................178mm(W)x50mm(H)x165mm(D)RUSSIAFM1 2FM3AM87.5-108.0M65.0-74.0M522-1620K1003095030929