Professional 0-2V Car Audio RCA Speaker High To Low Level Summing Line Output Converter & Wiring Adapter Condition: 100% new Color: Black Material: Plastic & Metal Size: approx.8.5x5.2x2.5cm(3.3x2x1inch)(LxWxH) Channel input power: 50W(Max.) RAC output level: 0.2V-2V RAC output bandwidth: 20Hz - 20KHz REM output control current: 1A(Max.) Item included: 1 x Speaker Level Converter 1 x Wiring Harness Suitable for: Auto stereo, cassette player,CD,VCD,DVD,etc. This Is Aftermarket Replacement Item But Not Genuine Note: 1) All dimensions are measured by hand, there may be small deviations. 2) Color may vary slightly due to the color setting of each individual monitor. Product Dimension: Feature: 1)High to low line output, converts 2 channels of speaker wire to RCA outputs 2) Allows the addition of amplifier and subwoofer to existing systems. 3) Suitable for car stereos up to 50 watts. 4) Compact & light weight design 5) High performance in Elimination of noise and the electricity sound. 6) Easy installation (The red, black, blue lines need not be connected if you do not want the REM control function.)