Amazon.com: Polk Audio T Series 3.1 Channel Complete Home Theater System with Powered Subwoofer | One (1) T30 Center Channel, Two (2) T50 Tower Speakers | Wi-Fi, Alexa, HEOS Built-in : Electronics
Xiaomi Soundbar 3.1ch: 430 W soundbar announced with a wireless subwoofer, NFC, Dolby Audio and DTS Virtual:X support - NotebookCheck.net News
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Amazon.com: beFree Sound 3.1 Channel Bluetooth Surround Sound Speaker System Black : Electronics
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Amazon.com: beFree Sound 3.1 Channel Bluetooth Surround Sound Speaker System Black : Electronics
Denon Home Wireless 3.1 Home Theater System - Wireless Sound Bar & Wireless Subwoofer | Denon - US