Sonos warns it could be forced to raise prices if Trump's trade war escalates

Smart-speaker maker Sonos filed regulatory documents for an initial public offering on Friday, and warned potential investors that US tariffs on China could harm its business. 
US tariffs on $34 billion worth of Chinese goods kicked in earlier on Friday. 
Companies seeking to go public may now have one extra risk to alert potential investors about: a trade war. 
The smart-speaker company Sonos filed regulatory paperwork for its initial public offering on Friday, and listed tr