VIZIO SB3821-C6 38-Inch 2.1 Channel Sound Bar with Wireless Subwoofer Enjoy 100 dB of room filling, crystal clear sound with less than 1% total harmonic distortion* Wireless subwoofer adds rich bass from anywhere in the room** Built-in Bluetooth lets you lose the wires and listen to your music with a tap of a finger with built-in Bluetooth Premium audio with Dolby Digital decoding, plus DTS TruVolume and DTS audio post processing Wireless remote for convenient volume, input and audio controls. Wireless Subwoofer range approximately 60 feet  line of sight from Sound Bar Please refer the Help & Troubleshooting tips provided in the user manual below