Xtreme XBA9-1014 is a wireless headphone and audio transmitter kit that allows you to stream audio from various sources to your headphones wirelessly. With Bluetooth connectivity, you can pair your headphones with Bluetooth-enabled devices like smartphones, tablets, and laptops. It also features a 3.5mm auxiliary input, enabling you to connect non-Bluetooth devices using the included cable. The headphones have volume controls, play/pause, and track skip buttons, allowing for convenient music control. Additionally, the headphones can be used as wired auxiliary headphones by plugging in a 3.