The Contixo BT05 Bluetooth portable wireless speaker is designed for people who have a passion for the outdoors and enjoy music. This speaker is powered by neodymium speaker drivers and a bass-boosting radiator. Built-in high capacity rechargeable 6000mAH Samsung battery. Bluetooth Speaker allows you play music for up to 20 hours. All-in-one multifunctional and high quality portable Bluetooth speaker delivers sounds with clarity and deep bass. Integrated support for USB and SD storage make it even more convenient for the user to enjoy music on the go. Supports audio formats MP3, WAV, WMV and SBC. 3 colors available.