HUMBIRD SPEAKER: The Smallest Bone Conduction Speaker Transforms anything hollow into a speaker, at any time HumBird Speaker is the world’s smallest and most versatile bone conduction speaker that allows you to have a different but always spectacular experience of sound anywhere, in any context. Transforms anything hollow Into a speaker, at any time Hear Everything Around You HumBird Speaker allows you to listen to music, follow podcasts, have individual phone conversations or conference calls, and even enjoy an amazing experience of the sound of your games, videos or films played on your device. Using a cutting-edge bone conduction technology, HumBird Speaker delivers a high sound volume, being 4 to 5 times louder than the average cell phone speakers' volume, reaching up to 115db, and it allows you to personalize the tone quality. Be Blown Away by True Wireless Stereo If you use you use two HumBird Speakers interconnected, you can have a Surround Sound 2.0 experience since this innovative Bluetooth-enabled device is also TWS-enabled.