The AH-booster was developed based on the now-discontinued AC-Comp pedal, which was Allen's favorite. ・Overdrive boasting amazing touch response. ・Equipped with a 2-band active EQ with adjustable treble and bass of +-15dB, allowing for easy and precise tone adjustment. ・Supports DC9-18V, and when boosted to 18V, the compression decreases, further increasing headroom and producing a punchy sound. ・By selecting from three different compression modes to match the characteristics of your guitar and amplifier, you can easily create a smooth overdrive sound. Dimensions (W / D / H) : 4.39" x 2.38" x 1.98" (110mm X 60mm X 50mm) Weight : 0.6 lbs. (275g) Bypass : True Bypass Switching Power Consumption : 9VDC / 4mA or 18V / 5mA Battery Type : 9VDC (006P) x 1 AC Adapter (Optional) : 9VDC-18VDC Negative Tips (Regulated Only) 5.1mm x 2.1mm barrel type Input Impedance : 500k ohm Output Impedance : 2k ohm ■Domestic genuine product, with manufacturer's warranty #tgakki Tsukamoto Gakki Type...Electric Guitar