Anker Soundcore Motion+ Bluetooth speaker has an ultra-wide frequency range that stretches from 50 Hz to 40 kHz and is paired with an advanced DSP to ensure all the details and idiosyncrasies of a song are faithfully reproduced. Packed with two ultra-high frequency tweeters,two neodymium woofers, and two passive radiators to fill every corner of your room with 30W of rich sound.Low frequencies are enhanced in real-time by our exclusive BassUpTM technology. The Music Goes On and On A 6,700 mAh Li-ion battery with Ankers proprietary battery technology and safety system gives you up to 12 hours of non-stop music on a single charge. Customized EQUse the Soundcore App to customize Motion+s EQ and create the perfect mix for your favorite music genres.