The Rocketfish Rocketboost Wireless Audio Receiver Transmitter Model RF-RBUSB is a great addition to your home audio system. With its 3.5mm audio inputs and outputs, you can easily connect your devices and enjoy wireless audio streaming.This black Rocketfish device can either function as a transmitter or receiver, and is powered by 5V DC. It is compatible with a variety of audio/video transmitters and TV, video, and audio accessories. The Rocketfish Wireless Audio Transmitter and Receiver is perfect for those who want to enjoy wireless audio without the hassle of cords and wires. Connect up to 8 units together for whole house synched audio!