# Voice-Controlled Solar Speakers LEMON's California Roll Speaker is High-Tech and Eco-Friendly By Katherine Pendrill | Published 2017-02-23 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/california-roll References: [techaeris](http://techaeris.com/2017/01/06/ces-2017-lemon-technology-announces-california-roll-waterproof-solar-powered-speaker/) & [kickstarter](https://www.kickstarter.com/projects/lemoncalifornia/california-roll-0) While there are already a number of Bluetooth speakers on the market, the [California Roll](https://www.trendhunter.com/trends/culture-cocoa-chocolate) by LEMON is set to blow them all out of the water. Not only does the speaker boast high-tech features such as 3D sound and voice recognition, but it also makes use of advanced solar technology. The California Roll speaker by LEMON is a sleek Bluetooth speaker that is small enough and light enough to take on the go. But unlike other [portable speakers](https://www.trendhunter.com/trends/beosound-a1-3rd-gen), the California Roll uses nine [NASA](https://www.trendhunter.com/trends/solar-panel-origami-technology)-grade solar cells to convert sunlight into direct current electricity. The cutting-edge solar technology allows the speaker to last for up to 20 hours from just seven hours of sunlight. Beyond its eco-friendly design, the speaker also boasts functional features such as 3D audio technology for an immersive listening experience, voice recognition for hands-free control and a multi-connection option for easy sharing. The speaker is also water-proof, shock-proof and temperature-proof, making it a durable option for outdoor use. ## Trend Insights (Trend Hunter) - Score: 2.9/10 - Popularity: 41% | Activity: 39% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### Key Themes Behind This Trend - **Solar-powered Bluetooth Speakers:** Manufacturers should look into creating eco-friendly electronic products, devices and appliances that harness renewable energy sources such as solar power, and apply this technology to other products beyond speakers - **Voice-activated Audio Devices:** There lies an opportunity for smart home devices manufacturers to innovate their products to include voice recognition technology, enabling users a hands-free experience - **Multi-functional Portable Speakers:** Portable speakers can be improved by offering multiple connectivity options and advanced features such as surround sound ### Where This Applies - **Consumer Electronics:** Consumer electronics companies, particularly those producing Bluetooth speakers, could leverage the trend of eco-friendliness and voice recognition technology in their products - **Renewable Energy:** Innovations in solar technology have led to an increasing demand for devices that harness renewable energy, presenting the opportunity for the renewable energy industry to expand its range of products beyond traditional solar panels - **Smart Home:** Manufacturers of smart home devices that cater to luxury, comfort, and convenience, should explore voice recognition technology as a way to expand their customer base ## Related on Trend Hunter - [Sustainable Solar-Powered Speakers](https://www.trendhunter.com/trends/solgaard-solarbank-boombox.md) - [Solar-Powered Outdoor Speakers](https://www.trendhunter.com/trends/lodge-sound.md) - [Resonance-Powered Portable Speakers](https://www.trendhunter.com/trends/leapsonic-speaker.md) - [Portable Voice-Enabled Smart Speakers](https://www.trendhunter.com/trends/roam-speaker.md) - [User-Following Speaker Concepts](https://www.trendhunter.com/trends/solros-speaker.md) - [Pocket-Sized Portable Speakers](https://www.trendhunter.com/trends/miniroll.md) - [Three-Dimensional Home Audio](https://www.trendhunter.com/trends/the-speaker.md) - [Emergency Audio Speaker Hubs](https://www.trendhunter.com/trends/crankspeaker.md) - [Tennis Ball-Shaped Speakers](https://www.trendhunter.com/trends/hearo.md)