Soundbar user manuals download:
Quick Start Guide VIZIO S4251W-B4
Quick Start Guide VIZIO S2121W-D0
Quick Start Guide VIZIO SS2521-C6
Quick Start Guide VIZIO SB4051-C0
Quick Start Guide VIZIO SB3820-C6
Quick Start Guide VIZIO SB2920-C6
Quick Start Guide VIZIO SB3821-C6