Idea Design Ampfly Sound Amplifier by Philip Kunovski Our design is a protective smartphone case that amplifies the sound output of a mobile device. It delivers up to three times volume amplification and uses absolutely no electronics or batteries to function. This case is made to improve media sharing amongst friends and listening to music on the phone. It can be used whenever and wherever needed, even in noisy places. The volume increase and sound quality outperform any comparable amplifiers by far. Besides functionality, the case’s attractive design and high-grade material make it a quality product. It is designed and manufactured in the UK.