Divoom Bluetune Solo Bluetooth Rechargeable Portable Speaker with Mic for Smartphones and Tablets - Retail Packaging - Slate Build-in microphone allows you seamlessly switch from listening to music to taking a hands free call. Audio out function lets you connect other additional Blue tune-Solo Bluetooth speakers to this unit and all your speakers play at the same time. Best party partner! Built-in rechargeable battery for up to 8 hours of quality playback. Wireless range up to 10 m/32.8 ft. FREE Carrying Pouch Patented PO-Bass Technology provides a deep bass in a compact package. Color: Slate. Compatible with iPhone 5, 4S, 4, iPad/mini, Samsung Galaxy S4, S3, S2 and other Bluetooth enabled devices.