VENTION 2.5mm to 3.5mm Adapter Mono, 3.5mm Male to 2.5mm Female Audio Adapter Gold Plated Connector Stereo Converter for Mic, Smartphones, Headphone, Speakers Support Mic Function (2 Pack);

Product Parameters:

Interface Process: Gold Plated
Type: 2.5mm Female to 3.5mm Male adapter
Shell Material: Aluminum
Shell Process: Electroplate
Applicable Devices:Phone/computer conect old 2.5mm earphone/speaker


Note:
This adapter compatible for all type of no mic function earphone. If your earphone/headphone with Mic Function,please check it is OMTP Standard Jack or CTIA Standard Jack, as this adapter only suit for OMTP Standard Jack Earphone but not compatible for the CTIA Standard Jack Earphone.
The difference of OMTP Standard Jack or CTIA Standard Jack Earphone/Headphone:
1.The 4 poles connection sequence of OMTP Standard Jack earphone is : Left Channel, Right Channel,Mic, Earth Wire
2.The 4 poles connection sequence of CTIA Standard Jack earphone is: Left Channel, Right Channel, Earth Wire,Mic
So please double check the standard of your earphone/headphone is OMTP Standard Jack or CTIA Standard Jack before purchase this adapter. Of course, if your earphone with no Mic function, then no worries, it will suit well.