100% brand new and high quality Features: Using LM1036 tones chip, SMD production process. Small size, stable performance. Board with volume - balance - treble - bass. With a rectifier circuit, AC and DC, DC input do not divide positive and negative. The power supply filter uses a 3300uf / 25V + 2200uf capacitor. Specification: Types: Potentiometer fixed version, Potentiometer separated version Operating voltage: DC 12-24V, AC 9-16V Dimensions: 3.3x10cm/1.3x3.94inch Color: Red Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x LM1036 Tone Board