The Wave-Link wireless audio system will transmit audio signals to any amplifier and/or subwoofer, making them wireless. The compact transmitter and receiver are small enough to fit almost anywhere and are powered by a USB cable and AC adapter. Each transmitter can transmit to a maximum of 5 receivers. Included is a 3.5mm to 1 x RCA, a 3.5mm to 2 x RCA and a 3.5mm to 3.5mm cables, as well as an AC power adapter.