MOBOREST can help you to put a 6.35mm (1/4 inch) plug (male) to a 3.5mm (1/8 inch) jack (female) stereo adapter. | MOBOREST is a new design that can better match your device. | MOBOREST is made of pure copper and its service life is much longer than plastic and gold plating. | MOBOREST Pure copper connectors resist corrosion and ensure minimal signal loss. | MOBOREST Carefree 18 months warranty and friend customer service.