Insignia - Rocketboost 6-1/2" 70W Wired/Wireless-Ready Subwoofer - NS-RSW211 for $19.99 + free shipping
6-1/2" powered subwoofer
Delivers authoritative bass for high-impact home theater audio.
Supplies 70 watts of power.
Frequency adjustment and volume control
Ensure balanced sound.
Rocketboost wireless-ready design
Lets you connect a Rocketboost RF-RBUSB Sender (not included) to wirelessly transmit audio to the subwoofer.
Line-level input jack
For a simple wired connection.