Feature: 1. [SPEAKER SIMULATION] The speaker simulator can reproduce the sound of the guitar speaker cabinet with good simulation effects. 2. [WITH EQUALIZER] With full 3 band equalizer and voice knob, adjust the equalizer and overdrive response, can simulate a variety of amplifiers. 3. [6 KNOBS ADJUSTMENT] With 6 adjusting knobs, namely Low, Mid, High, Level, Voice and Drive, with good practicability. 4. [METAL MATERIAL] The shell is made of metal material, with paint finish, hard and wear resistant, not easy to corrode. 5. [WITH LED LIGHT] The simulation effect has small LED flash to indicate the working status, with simple operation. Specification: Item Type: Speaker Simulator Color: Golden Material: Metal Input Impedance: 1MΩ Output Impedance: 1KΩ Working Current: 6mA Power Supply Mode: 1 x 9V battery 6F22 (not included), 9V power adapter (not included). Package List: 1 x Speaker Simulator Effect1 x User Manual