About this item 3.5mm to 1/4 adapter: Turn a 6.35mm male plug adapter into a 3.5mm female jack, ideal for connecting smartphones, tablets, or headphones with standard 3.5mm plugs to audio devices with a 6.35mm stereo jack. Examples include connecting a piano keyboard to headphones, a guitar amp to speakers, or an amplifier to headphones or speakers. 30cm-More-Length: The 1/4 to 3.5mm adapter features a 30cm durable and premium soft PVC jacket extension cable, creating more available space between two connected devices. This adapter is very portable and provides a quick response with a tight connection, allowing for easy conversion from a 6.35mm port to a 3.5mm port. (Please ensure that the devices you use have a stereo TRS jack. It transfers audio between devices, no mic.) Qualified Audio Adapter: This headphone adapter with 24K gold-plated connectors ensures high stability and high-speed lossless transmission. The metal housing provides wear resistance and anti-corrosion protection, w