Length: 27 cm Remote level control designed for mono amplifiers and car mono amplifier systems. Key Features and Benefits: Easy, onthego adjustment of gain level or volume for car audio systems. Durable knob constructed from quality chipset with an elegant metal casing for reliable performance and feel. Simple installation: connect the output connector to your car stereo and the input connector to your amplifier device. No additional wiring required. Maintains clean music signal transmission for clear and consistent audio output. Function and Performance: Enables precise control over bass levels directly from the driver's seat, enhancing your listening experience without distracting from driving. Compatible with mono amplifiers in automotive audio setups. Sturdy construction ensures dependable performance over time and resistance to wear. Use Scenarios: 1. Quickly adjust bass output when switching between different music genres while driving. 2. Reduce gain levels when speaking with passengers or making hands calls. 3. Finetune volume and bass settings for sound during long road trips without stopping to change amplifier settings. This 27 cm remote level control is a practical, reliable solution for drivers who want seamless, inmotion audio adjustments for their mono amplifier systems. Its solid build and straightforward integration make it an essential component for achieving car audio performance.