# Shoe Gadget Juicers Cellphone Charger by Soledad Martin Turns Paces into Power By Amelia Roblin | Published 2011-09-08 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/cellphone-charger-by-soledad-martin References: [designbuzz](http://www.designbuzz.com/entry/cellphone-charger-with-nanogenerator-system-allows-charging-on-the-go/) & [coroflot](http://www.coroflot.com/soledadmartin/cellphone-charger/1) Developing cutting-edge eco-friendly means to harness energy is one of the most exciting tasks that a young industrial designer can take on. This Cellphone Charger by Soledad Martin demonstrates just how extensive the possibilities are for producing power passively. All that this invention asks is that you carry on with your usual daily routine but keep the [shoe charger system](https://www.trendhunter.com/trends/footwear-project) strapped to your sneakers. The device is small enough that it won't interfere with most sports, and rather welcomes more vigorous activities because that way it can generate more energy. The Cellphone Charger by Soledad Martin works with a nanogenerator system to turn the [kinetic energy of your foot's motion](https://www.trendhunter.com/trends/yarn-battery) into the stuff that brings your mobile phone battery back to life. It's got a [built-in USB port](https://www.trendhunter.com/trends/al-charger) so you can even juice up your handset right in the street. ## Trend Insights (Trend Hunter) - Score: 4.5/10 - Popularity: 65% | Activity: 62% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America, Europe, Asia ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### What's Driving This Trend - **Eco-friendly Energy Generation:** Discover innovative ways to harness energy in an eco-friendly manner, such as through kinetic energy. - **Wearable Technology:** Explore the potential of wearable devices to generate power and enhance usability. - **Nanogenerator Systems:** Harness the power of nanogenerator systems to convert kinetic energy into usable electricity. ### Who This Affects Most - **Renewable Energy:** Find disruptive opportunities in renewable energy solutions, such as using wearable devices to generate power. - **Sportswear:** Leverage the intersection of sportswear and wearable technology to create new products that generate energy during physical activities. - **Mobile Technology:** Innovate in the mobile technology industry by integrating eco-friendly charging solutions into smartphones and other mobile devices. ## Related on Trend Hunter - [Kinetic-Friendly Power Banks](https://www.trendhunter.com/trends/last-resort-power-bank.md) - [Chic Shoe Care Appliances](https://www.trendhunter.com/trends/shoe-styler.md) - [Regenerative Cycling Equipment](https://www.trendhunter.com/trends/energy-keeper.md) - [Smartphone-Controlling Sneakers](https://www.trendhunter.com/trends/samsung-shortcut-sneaker.md) - [Display-Equipped Smart Chargers](https://www.trendhunter.com/trends/dino-charger.md) - [Rapid Phone Charging Solutions](https://www.trendhunter.com/trends/swapperys-external-smartphone-battery.md) - [Frozen Treat Power Banks](https://www.trendhunter.com/trends/popsic-charger.md) - [Solar-Powered Headphones](https://www.trendhunter.com/trends/rpt02-sol.md) - [Garden-Inspired Smartphone Chargers](https://www.trendhunter.com/trends/mini-moonlit-desk-garden.md)