EXCLUSIVE WIRELESS / BLUETOOTH BASS KNOB "GREEN"  Built In Digital Volt Meter Long Range Distance (20 feet, line of sight) Low Distortion, Auto Sync, Low “user” input to reaction delay. Sturdy Acrylic Case. UV Lit NEON Acrylic, available in 3 colors.   Smooth, zero dead spot knoB with “True” mute. Long life Potentiometer for continuous use in demanding situations (Demos) Note: product ships 7 days from order date or less depending on current stock.