For Fh 168 Speaker Polarity Tester Speaker Tester,Auto Car Audio Speaker Horn Tester Phase Meter Phasemeter Video Doorbells and channel information clearly

and channel information clearly

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For Fh 168 Speaker Polarity Tester Speaker Tester,Auto Car Audio Speaker Horn Tester Phase Meter Phasemeter Video Doorbells and channel information clearlySpecification: Condition: Brand New Material: Plastic Color: Black + Silver Size: As Picture Shown Package Weight: Approx. 139G 4. 9Oz #How To Use The Tester? The Cd With The Package Include 4 Section Test Music. Section 1: Left Channel Noise Section 2: Right Channel Noise Section 3: Phase Test Section 4: Same As Section 3 Put It In Car Cd Player, And Play Section 1 Or 2, Check If Left Right Channel Connection Is Right. Play Section 3 Or 4, The Sound