Mini Wireless Bluetooth Speaker Bullet with Built in Microphone High Quality Sound (Black) You're looking at our brand new Portable Rechargeable Mini Bluetooth Speaker with build-in Microphone. With the portable Bluetooth speaker, you could enjoy the music with high-quality sound by connected with Bluetooth enabled devices such as cell phones, laptops, tablets at anywhere. Great high and low pitch makes it sound incredible. Devices with plug in for 3.5mm jack cable could play the music High Capacity Polymer Li-ion Battery, standard USB to Mini USB charging port