Why Choose Our 3.5mm Female to Female Adapter?. 3.5mm (1/8") audio adapter perfect for extending shorter cables. Don’t compromise on quality—all your audio needs are just a simple connection away. Unit Quantity: 0.02 kg Item Height: 3.5mm audio adapter Item Length: 3.5mm audio adapter Connector A: 3.5 mm Female,3.5 mm Jack Female.