Power adjustable: 0-600 watts. LCD displays working frequency, forward power, reflected power and UV meter. Single Knob operation, simple and convenient to operate. Mono/Stereo/Mute mode Optional. Automatic power control maintaining the output at any preset level Pre-emphasis optional at 0, 50us or 75us. Dual stereo audio input interface. SWR &temperature protection. Alarm prompt indicated once either is out of the scope of protection value.