Works with 4.4mm jack equipment, 4.4mm male to 3.5mm female adapter allows you to connect headphones to various devices. Made of oxygen-free copper wire for clear signal transmission, depth, and resolution. Reduces the possibility of wire oxidation and accurately restores music details. Gold-plated pure adapter helps protect sound transmission and resolution from interference, delivering lossless sound quality. Compact and portable design, compatible with earphones, headphones, and home o equipment such as amplifiers, mixing consoles, home theater systems, AV receivers, and karaoke systems. Available with straight or bent plug; grip treads enable easy plugging and unplugging. Material: Tinned copper wire. Color: Black. Package includes: 1 x Adapter cable. Only the listed items are included; other products are not included. Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3 cm.