Mount Plus 201D Vesa 400 x 200 Adapter Plate for Wall Mounts

Mount Plus 201D VESA Monitor and TV Mount Extender Conversion Kit | 100x100, 200x200 Convert to 400 x 200 Adapter Plate for TV Wall Mounts | Heavy Duty and Hardware Included

Dayton Audio BST-1 High Power Pro Tactile Bass Shaker 50 Watts RMS, 4 Ohms Impedance - Turn Any Surface into a Speaker System - Generates Subwoofer Lows

Nobsound Mini Bluetooth 5.0 Power Amplifier, Stereo Hi-Fi Digital Amp 2.0 Channel 50W×2 with AUX/USB/Bluetooth Input, Wireless Audio Receiver, PC Sound Card with Power Supply (Black)