Used for about six months. Never taken outside the house. Although the appearance is different, the internal components are the same as the M76 studio compressor, so I used it connected to my guitar. It's a natural compressor without any particular character or coloration, so it's easy to use even when left on. For a better understanding of its use, please refer to Kenji Suzuki's video. - Model Name: MXR M87 Bass Compressor - Brand: MXR - Color: White - Function: Compressor - Controls: Output, Gain Reduction, Attack, Ratio, Input - Connection Terminals: Input, Output - Accessories: Box - Guitar Effect Pedal Thank you for looking.