| Brand | Unbranded |
|---|---|
| Manufacturer Warranty | 3 Years |
| Country of Origin | China |
Check the listing for details. PC218 Audio Phase Polarity Checker Speaker Mic Testing Tool. Condition: New, Made in China. Listed at 224.20 USD. PC218 Phase Polarity Tester Checker Detector Audio Speaker Microphone Sound Testing. - Input impedance (Mic) : 1KOhm. - Input level (Mic) : 10mV - 1V. - Input impedance (Line) : 10KOhm. - Input level (Line) : 0.5V to 50VOutput level : 0V to 1V.