How much does this cost to the nearest dollar?

HumanCentric Wall Mount Compatible with Sonos Arc Sound Bar (Black), Floating Style Mounting Bracket Soundbar Mount for Sonos Arc Mount on Wall Under TV
WALL MOUNT COMPATIBLE WITH SONOS ARC – Mounting bracket includes all hardware to mount your Sonos Arc on the wall. The wall mount bracket is compatible with the white and black Sonos Arc. HIDDEN DESIGN – The HumanCentric wall mount does not have unsightly metal struts. This mount almost completely hides behind your soundbar for a minimalist and clean look once everything is installed. After installation, you'll have a floating style Sonos soundbar mount. SMART EQ OPTIMIZATION – The Arc is able to detect when it is attached to this mount to adjust the EQ for optimal quality by tempering the

Price is $40.00

Price: $39.99