Check the listing for details. SONOS Era 300 Wall Mount Black - Pair. Color: Black, Condition: New, Made in China. Listed at 45.00 USD. The Sonos Era 300 Wall Mount in Black is specifically designed for the Sonos Era 300 speaker. This mount allows you to securely attach your speaker to the wall, providing a sleek and hidden look. The black color complements the speaker's design, enhancing its overall aesthetic. Perfect for those looking to elevate their home audio experience with a stylish and functional speaker mount.The Sonos Era 300 Wall Mount in Black is specifically designed for the Sonos Era 300 speaker. This mount allows you to securely attach your speaker to the wall, providing a sleek and hidden look. The black color complements the speaker's design, enhancing its overall aesthetic. Perfect for those looking to elevate their home audio experience with a stylish and functional speaker mount.