Quadr-Layer Shielding: this 6.35mm to 3.5mm adapter perfectly combined tinned coppers, aluminum foil, soft and durable PVC covers, it's high-density shielding protection and effective isolation, offer a full and delicate tone, highly restored quality sound. Qualified Audio Adapter: MillSO 3.5mm to 1/4 headphone adapter, with 24K gold-plated connectors, ensure high stability, high-speed lossless transmission; metal housing is a wear-resistant, anti-corrosion, and solid protection; tin-plated oxygen-free copper wiring for high fidelity, pure sound quality. Standard 3.5mm jack and 6.35mm plug have outstanding compatibility which connects your devices firmly and ensures you enjoy wonderful music. Plug and Play: MillSO 1/4 to 1/8 headphone adapter is very portable and has a quick response, tight connection, flexible convert a 6.35mm port to a 3.5mm port. (Please notice that the devices you use for should also have a stereo TRS jack. Transfer audio between devices, no mic.). 30cm-More-Length: 30cm durable and premium soft PVC jacket extension cable trends to create more available space between two connected devices. MillSO 1/8 to 1/4 adapter is a 3.5mm Female jack into a 6.35mm Male plug adapter, for connecting smartphones, tablets or headphones with standard 3.5mm plugs to audio devices with a 6.35mm stereo jack. Eg: piano keyboard to headphones adapter, guitar amp to speaker adapter, amplifier to headphones adapter, amplifier to speaker adapter, 6.35mm headphone to computer adapter, mixing console to speaker adapter...