OMTP is a 3.5mm interface standard for headphones with MIC, which is generally called a domestic standard. The pin connection is (from a small head) left channel-right channel-mic-ground (pictured). When the 3.5 interface is used with a DV interface, the corresponding ones are (from a small head) left channel-right channel-video-ground (pictured), supported companies are Nokia, Huawei, ZTE, Lenovo, Apple Products are sold in China.
CTIA is a 3.5 mm interface standard for headphones with MICs, commonly referred to as an international standard. The pin connection is (from a small head) left channel-right channel-ground line-microphone (pictured). When using the 3.5 interface with the DV interface, the corresponding interfaces are (from the head) left channel-right channel-ground wire-video (photo), supported companies include Samsung, Apple (outside China). There are some), Sony, MOTO, etc.
The difference between the two is that the last two sections of the plug (GND and MIC) are in reverse order. Inserting a CTIA headset into an OMTP device can reduce sound and distortion. If the 3.5 socket is equipped with video function, it may appear, the sound is distorted, the sound is quiet, and there is no video phenomenon.
This CTIA and OMTP reciprocal turn plug can convert a socket with a CTIA system to an OMTP system via the plug. Alternatively, you can convert a socket with an OMTP system to a CTIA system via an adapter.
Product size 8 * 45 mm, gold-plated plug. 3 pack
