Bluetooth Speaker - active, with power performance of 12W, frequency range from 70 Hz to 20000 Hz, Bluetooth 4.2, microphone, supports SBC, control via device with iOS or Android, battery life of 12 hr(s) This Anker Soundcore Motion B - Black Bluetooth Speaker will bring a rich bass and clear treble sounds that will surpass the expectations of all music enthusiasts. And you can forget about the cables! The latest Bluetooth technology makes it possible to play music from your smartphone and other compatible devices. This Anker bluetooth speaker has a range of audible frequencies from 70 Hz up to 20000 Hz. The total power performance of 12 W guarantees quality sound even in a larger living room. The battery inside the speaker has a capacity of 2600 mAh, therefore you can have entertainment continuously for 12 hr(s). You can charge it by the microUSB connector.