New XRS321 Remote Control for VIZIO S3821w-c0 S3820w-c0 S2920w-c0 Vizio 2.1 and Vizio 5.1 Home Theater Sound Bar New XRS321 sound bar remote control, work With almost all VIZIO brand SOUND BAR System . Do not need any program, only put into new battery can work well!!! USA Quick shipping! one year warranty! Work with below knowing models:?S2120W-E0?S2120W-E0D?S2121W-D0?S2920W-C0?S3820w-C0 ?S3821w-C0?S3821w-C0B?S3821w-C0C Note: If you have any query please let us know before give feedback to us, we will solve for you, thanks a lot!