Universal Car Phase Tester Audio Speaker Horn Positive Negative Polarity PH Phasemeter Automotive Accessories _x000D_ _x000D_ Phase Tester Audio Speaker Horn Positive Negative Polarity PH Phasemeter for Auto _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Feature: _x000D_ _x000D_ 1. The phase meter can test all speakers of all cars, such as small tweeters, door speakers, subwoofers, etc. 2. Effectively used to test speakers, perfect for safe troubleshooting and testing of audio systems. 3. It can be used for car audio speaker test. Professional manufacturing, high reliability. 4. The loudspeaker wiring specially for adjusting the car sound system, only the correct wiring, the sound can be replayed truthfully when listening to music. 5. The battery type of the phase meter is lithium battery, battery model: 6F22 (delivery without battery). _x000D_ _x000D_ _x000D_ Specification: _x000D_ _x000D_ Item Type: Phase Tester Material: ABS Use: The loudspeaker wiring specially for adjusting the car sound system, only the correct wiring, the sound can be replayed truthfully when listening to music, just have the feeling of harmonious and realistic nature. Application: Universal Battery Type: Lithium battery Battery Model: 6F22(shipped without batteries) _x000D_ _x000D_ _x000D_ How to Use: _x000D_ _x000D_ Testdisccontent: _x000D_ _x000D_ _x000D_ Thefirstsegment:leftchannelnoisesignal. _x000D_ _x000D_ _x000D_ Thesecondsegment:thenoisesignaloftherightchannel. _x000D_ _x000D_ _x000D_ Thethirdsection:phasetestsignal. _x000D_ _x000D_ _x000D_ Thefourthsection:phasetestsignal. _x000D_ _x000D_ _x000D_ Adjustmentofspeakerwiring _x000D_ _x000D_ _x000D_ Afterthesoundsystemisinstalled,putthetestdiscintothehostfirst,andadjustthevolumeoutputtotheappropriateposition.Thenfollowthestepsbelow. _x000D_ _x000D_ _x000D_ Step1:Selectthefirstandsecondparagraphsrespectively.Checkwhethertheleftandrightchannelsarereversedwhenconnected. _x000D_ _x000D_ _x000D_ Step2:Choosethethirdorfourthparagraph.Checkwhetherthephaseoftheleftandrightchannelspeakersiscorrect. _x000D_ _x000D_ _x000D_ Placethefrontendofthephasemeter(withamicrophoneintheinstrument),approachandfacethespeakerundertest,pressthepowerswitchofthephasemeter,thegreenlightflashesthreetimesandtheredlightflashesonce,indicatingthatthespeakeroutputispositivephase.Thegreenlightflashesonceandtheredlightflashesthreetimes,indicatingthattheoutputisnegativephase.Ifthephaseiswrong,youcanreversethewiringatbothendsofthespeaker. _x000D_ _x000D_ _x000D_ Theyellowlightindicatesthatthebatteryofthephasemeterislowandneedstobereplaced. _x000D_ _x000D_ _x000D_ Package List: _x000D_ _x000D_ 1 xPhaseTester _x000D_ _x000D_ 1 x CD _x000D_ Note: This product can only determine whether the wiring is correct or incorrect, and cannot determine where the wiring is wrong. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ 1) We accept Alipay, West Union, TT.All major credit cards are accepted through secure payment processor ESCROW. _x000D_ 2) Payment must be made within 3 days of order. _x000D_ 3) If you can't checkout immediately after auction close, please wait for a few minutes and retry Payments must be completed within 3 days. _x000D_ _x000D_ About shipping _x000D_ 1. WORLDWIDE SHIPPING.(Except some countries and APO/FPO) 2. Orders processedtimely after thepayment verification. 3. We ship to confirmed order addresses. Your order address MUST MATCH your Shipping address. 4. The images shown are not the actual item and are for your reference . 5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season. 6. If you have not received your shipment within the period, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction! 7. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery. _x000D_ 8. We seller are not in charge of import duty, buyer is responsible for that. Any dispute caused by this is unreasonable. _x000D_ 9. BR buyer please provide the cpf or cnpj, it will be better for you to get it more quickly. thanks _x000D_ _x000D_ Return and Refund _x000D_ 1. You have 7 days to contact us and 30 days to return it from the date it was received. If this item is in your possession more than 7 days, it is considered used and WE WILL NOT ISSUE YOU A REFUND OR REPLACEMENT. There are NO EXCEPTIONS!And Pay attention please!The Shipping cost is bear by buyer themselves. 2. All returned items MUST BE in the