100 Women: What does sexism sound like?
The 100 Women Challenge team have been unveiling their innovations to tackle the glass ceiling.
Along with two apps and a wearable tech necklace, the team also created an eye-catching art installation.
Here's what happened when they road-tested the idea in Silicon Valley.
BBC 100 Women names 100 influential and inspirational women around the world every year. In 2017, we're challenging them to tackle four of the biggest problems facing women today - the glass ceiling, female illiteracy, harassment in public spaces and sexism in sport.
With your help, they'll be coming up with real-life solutions and we want you to get involved with your ideas. Find us on Facebook, Instagram and Twitter and use #100Women
