SoundCore mini The Mini Bluetooth Speaker with Superior Sound From ANKER, the Choice of 20 million+ Happy Users Industry-Leading Technology Compact And Powerful Super-portable Bluetooth speaker with incredible sound quality. A 5W audio driver and passive subwoofer ensure you get crystal-clear sound and powerful bass from a speaker you can literally take anywhere. Advanced Bluetooth Technology Bluetooth 4.0 seamlessly connects to any Bluetooth device. A 66ft transmission range, and a noise-cancelling microphone enable hands-free calling. Unstoppable Music SoundCore mini boasts micro SD support, AUX-in jack. Listen Longer SoundCore mini supplies you with 15 hours of continuous playtime, more than double that of similar-sized speakers, so you can listen for longer.