Watson XL15R guitar practice amplifier (by Philipson).Main Controls and FeaturesDual Instrument Inputs: Features HI (high impedance) and LOW (low impedance) 1/4" input jacks to accommodate different guitar pickups.Two Channels: Features an integrated Clean and Overdrive channel layout.Gain & Level: Controls distortion intensity and channel volume when the Overdrive push-button is engaged.Master Volume: Controls overall loudness for the clean signal path.3-Band Equalizer (EQ): Dedicated Bass, Middle, and Treble control knobs to sculpt your guitar's tone.Built-in Reverb: An analog Reverb control dial adds ambient depth to the instrument tone.Microphone Input & Level: A dedicated 1/4" MIC jack and separate volume knob, allowing you to blend a vocal microphone alongside your guitar.