New Remote Control XRS321-C fit for VIZIO Sound Bar SB3820-C6 SB3821-C6 SB2920-C6 SS2521-C6 SS2520-C6 (Black) new remote. No need to set up. just need put new battery to use. fit for VIZIO Sound Bar SB3820-C6 SB3821-C6 SB2920-C6 SB3821-D6 SB3820x-C6 SS2521-C6 SS2520-C6 (Black) 60 days US Warranty Fast shipping.