Features: Micro USB Male to 3.5mm Jack Female Audio Cable Cord converts phones with micro USB socket to 3.5mm headphone plug, to connect any 3.5mm audio headphones, headset, speaker like Active Clip, Mic, Microphone, action camera ect. Specifications: Color: Black Length: 30cm/1ft. 30cm/1ft only working for micro USB port with audio transmission function. NOT WORK FOR MICRO USB WITHOUT AUDIO TRANSMISSION FUNCTION OR MINI USB CONNECTION. Connector A: Micro USB Connector B: 3.5mm Female Sleek design made to fit comfortably Small and compact for portable usage Package Included: 2 x 3.5mm Female AUX Audio Jack to Micro USB 5Pin Male Converter Audio Cables NOTE: This cable suitable for p3 p4 earphones, can not use in the phone earphones, pls feel free to contact us first if you have any question before you place the order. Can't be used with IOS device(Not compatible with Iphone 7/ Iphone Plus/ Iphone 8plus / Iphone 8 / Iphone X ect), ONLY working for micro USB port WITH audio transmission function, NOT WORK FOR MICRO USB WITHOUT AUDIO TRANSMISSION FUNCTION OR MINI USB CONNECTION This DOES NOT work as a microphone. It’s ONLY used to transfer audio. It cannot be used to transfer calls. Applicable model: OPPO Finder907 T29A93 U521 U539 A129 Smart Phone, kia brand smart model has not been tested one by one 【Hassle-Free Warranty】: Hxchen guarantee high quality and good service. Here with our 90-day money back risk-free purchase guarantee, order now! If you are not satisfied in any way, Refund or Replacement for any quality problem.