range: 0-800m, power: 300W, screen: 6',dual channel Confirm to "Rules ... Auto zoom mode, Manual zoom mode Technical SpecificationScreen: 6-inch TFT color LCDRange: 0-800mAuto range: YesAuto ... gain: YesBrightness adjustment: 6 stagesDisplay speed: 8 stages including: *4, *2, *1 ... /200KHz (two frequencies )Transmitting Power: 300W (virtual value) 6' fish finder