Amazingly high power and a great sound have been squeezed into the compact dimensions of this small portable speaker. The visible bass converter placed on its back helps to generate a robust sound. You can play music not only via Bluetooth but also from a USB drive or microSD card. The speaker also has a built-in FM radio and microphone for hands-free calling. Loop with 10 kg load bearing capacity lets you hang the speaker up anywhere. The 400 mAh battery provides up to 5 hours of playback (at 50% volume).