The headphone jack is a family of electrical connectors that are typically used for analog audio signals. It is also known by other names like phone jack, audio jack,aux input,etc. There are cases where headphone jack are used for digital audio signals.
 
  Audio jacks are found on many types of audio equipment and musical instruments that accept external sound sources.

  The audio industry has not unified in the way the electrical and mechanical trades have to describe the different gender of connectors. You will often find the word "plug" used to describe the male connectors while "jack" used to describe the female connectors

 
  All headphone plugs have conductors. Conductors are the contact points of the plugs that close the circuit. A Audio Phone plug has a minimum of 2 conductors and commonly up to 5. If it has 3 conductors, it may be called a 3 conductor plug. Some manufacturer uses pole to replace conductor. Hence, it can also be called a 3 pole plug.

  

 All plugs have at least a Tip and Sleeve. It is the number of Rings that differentiate them. If the plug only has one ring, it is a 3 conductor plug or a TRS connector. If it has two rings, it is a 4 conductor plug or a TRRS connector.

 

   

 

Q: Where Can we get the datasheets of the products?
A: Each product has the specification, Please contact with our sales if you need

Q: Can we get the samples before placing the order?
A: Yes. we can send you some free samples for your test before your order.

Q: How long is the lead time?
A: Normally we keep stock for most products, the lead time is 5~7 days as soon as the payment is released.
For customized products, it takes longer.

Q: How about the after-sale service?  
A:We offer 12 months for every products we sold. If you meet any problems after sales, Pls contact us freely,we'll help solving the problems within 24 hours.

Q:  What's the payment terms? 
A: Normally we accept TT and Paypal. L/C is also accepted if the order quantity is large. For old customers, we'll guanartee monthly payment after good cooperationship.

Q: How about your quality control?
A: All the products will be 100% checked before the shipment. 

Q: Does your company accept small order?
A: Yes, we accept small trial order.

Q: Do you support customization?
A: We support the OEM&ODM service.