Portable Bluetooth Anker SoundCore Motion Boom SpeakerProduct Description The Portable Bluetooth Anker SoundCore Motion Boom Speaker delivers clear high tones and deep bass with the 30W precision drivers. The speaker has a very premium feel thanks to the design and the high quality materials. Features: High Fidelity Sound. Remarkable Output. Bass Up Technology Our exclusive bass boosting technology provides real time enhancements to low frequencies for bass that drops deeper and deeper with every beat.