# Lightweight Headphone Amplifiers The Nexum Aqua is the World's Lightest No-Battery Music Enhancer By Ady Floyd | Published 2015-08-10 | Tech Source: Trend Hunter, https://www.trendhunter.com/trends/nexum References: [gizmag](http://www.gizmag.com/aqua-dac-amp-enhances-mobile-music/38795/) & [kickstarter](https://www.kickstarter.com/projects/311770269/aqua-worlds-lightest-headphone-amplifier) The Nexum Aqua is a headphone attachment that enhances and amplifies sound quality. This device is the world's lightest audio enhancer. The sound it creates is studio-quality, which is comparable to large sound systems and stereo devices. The most impressive feature of the Nexum Aqua is the battery-free capability, which means no charging is required. Instead of a charger there is a [micro USB cable](https://www.trendhunter.com/trends/ka15-usb-dac) embedded into the headphones that draws power through the device it is connected to. In addition, its tiny size makes it [lightweight and convenient](https://www.trendhunter.com/trends/shokz-opendots-one) to use on to go. This small yet extremely practical device is stylishly made from metal. This specially designed [sound amplifier](https://www.trendhunter.com/trends/devialet-astra) is designed strictly for headphones. By catering to commuters and travelers, the sound-enhancing device will improve music and audio by conveying pure sounds. ## Trend Insights (Trend Hunter) - Score: 3.3/10 - Popularity: 35% | Activity: 56% | 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) > [Tech](https://www.trendhunter.com/tech) ## Key Themes ### Why This Trend Is Growing - **Wireless Headphone Enhancers:** Disruptive innovation opportunity: Develop a wireless version of the Nexum Aqua to further improve portability and convenience. - **Eco-friendly Audio Enhancers:** Disruptive innovation opportunity: Create a battery-free audio enhancer that is made from sustainable materials, in line with the growing demand for eco-friendly products. - **Smart Headphone Enhancers:** Disruptive innovation opportunity: Incorporate artificial intelligence and machine learning algorithms into headphone enhancers to provide personalized sound enhancements based on individual preferences. ### Industries Being Reshaped - **Consumer Electronics:** Disruptive innovation opportunity: Develop smaller, more powerful audio enhancers that can be integrated into various consumer electronics, such as smartphones, laptops, and portable music players. - **Music and Audio Streaming Services:** Disruptive innovation opportunity: Partner with headphone amplifier manufacturers to offer bundled services and products that cater to users who value high-quality sound and want to optimize their listening experience. - **Travel and Transportation:** Disruptive innovation opportunity: Collaborate with airlines, bus companies, and other transportation providers to offer headphone amplifiers as part of the in-flight entertainment system or as rental options for passengers. ## Related on Trend Hunter - [Compact Audio Amplifiers](https://www.trendhunter.com/trends/fiio-snowsky-tiny.md) - [Customizable Bluetooth Amplifier Accessories](https://www.trendhunter.com/trends/whooshi-portable-amplifier.md) - [Luxe Portable Headphone Amplifiers](https://www.trendhunter.com/trends/fiio-q15-dac-and-headphone-amplifier.md) - [Magnetic Smartphone Audio Amplifiers](https://www.trendhunter.com/trends/hires-headphone-amplifier.md) - [Posh Power-Free Smartphone Speakers](https://www.trendhunter.com/trends/amplifying-speaker.md) - [Luxe Lossless Audio Earbuds](https://www.trendhunter.com/trends/questyle-nhb12.md) - [Detachable Amplifier Headphone Concepts](https://www.trendhunter.com/trends/nothing-headset-1.md) - [Live Music-Replicating Headphones](https://www.trendhunter.com/trends/korg-nutube.md) - [Compact Headphone Audio Amps](https://www.trendhunter.com/trends/katanago.md)