Explored users’ shower singing habits and identified key pain points
Created user flows and designed key features for hands-free interaction
Built a KTV shower system with key functions
Conducted one pre-test and two rounds of formal user testing
Refined prototype and testing strategies based on findings
I first interviewed users to understand their frustrations, then analyzed the causes and designed features to address each pain point.
It’s annoying to step out of the shower to change a song with wet hands.
Manual Control
Stopping to change songs, search, or adjust the volume disrupted the showering flow.
AI Assistant
Enabled hands-free control to keep showering flow.
I want to sing along so badly, but sometimes I don’t know the lyrics.
No Lyrics Support
Not knowing the lyrics made it hard to sing along.
Karaoke-Style Lyrics
Displayed real-time lyrics to support smooth sing-along.
Sometimes I don’t know what to sing and need some inspiration.
Manual Search
Users had to manually browse songs, breaking the showering flow.
AI Recommendation
Delivered personalized, mood-based song suggestions to spark inspiration.
AI Mood Recommendation
Vocal & Instrumental Mode
Manual Control
12
22-35
2
Answer Yes
Criteria
In Real Bathroom
Bryan | 26
Philipp | 25
Laura | 24
This project extends my earlier bathroom product design about singing in the shower. I led the end-to-end process, from prototyping and testing to analysis, especially gaining insights into UX for AI assistants in confined spaces and learning how to prototype AI-driven interactions.
Future improvements will focus on enhancing system functionality, expanding user testing, and validating performance in real wet bathroom conditions.
This experience strengthened my passion for creating intuitive, engaging AI interactions for everyday life.
