This Uniden Bearcat ESP5 External CB Radio Speaker is a high-quality portable speaker system that is perfect for use with a 3.5mm aux input and a 5-watt power output. It comes with a 6-foot cord that allows you to connect it to your device easily. This speaker system is designed for use with radio communication and consumer electronics, and it is a great addition to any setup. With its brand-name Uniden, you can be sure that this speaker system is of the highest quality. Its audio inputs include a 3.5mm jack, and it has a wired connectivity option. This model, ESP5, is perfect for those who want a reliable and portable speaker system.