Model: SD08 Wireless Subwoofer standalone home audio subwoofer unit. Color: Black rectangular cabinet with front badge logo and four round feet. Rear label details: SD08 Wireless Subwoofer; INPUT POWER: DC/19V; SPEAKER UNIT: 5.5 Inch 4Ω/40W; FREQUENCY RANGE: 35HZ-200HZ; BASS PORT: 1. Features: Rear bass-reflex port, DC power jack, wireless pairing button with indicator light, down-firing woofer driver, and QC PASS inspection sticker on the back panel. Included: SD08 Wireless Subwoofer only; power adapter, audio cables, transmitter, manuals, and original packaging are not included. Compact wireless subwoofer suitable for adding bass to compatible home theater, TV, or sound bar systems.
eBay