Characteristics and Interoperability is a product line that connects audio playback devices with AUX 3.5 connection ports to PCs, laptops, phones, and other devices with AUX 3.5 ports. – Two 3.5mm heads are frequently seen in many modern device lines. - Sturdy springs are wrapped around the connection wire to effectively prevent tangling and breaking. The product has a nearly one-meter long cord that is designed for ease of use. Its pure copper core ensures a good data transmission rate and stable, delay-free audio transmission.