PORTABLE BLUETOOTH RECHARGEABLE SPEAKER WITH MICROPHONE, USB/SD/AUX-IN/FM RADIO - BLACK. Wireless Portable Bluetooth Speaker. Powerful Speakerphone: Allows You to Talk Through the Speaker When Receiving a Phone Call or Making a Conference Call . Seamlessly Stream and Share Music, Movies, Games, and Calls Anywhere. Built-In Bluetooth Receiver Allows You To Wirelessly Connect To Your Ipad, Iphone, Ipod, Smartphone, Android Tablet, Laptop, Computer, MP3 Player and More Built-in Micro SD Card Slot Allows You to Play Music Via a Micro SD Card . 3.5mm Auxiliary Input Allows You to Connect Wired External Audio Devices. Built-in Lithium Rechargeable Battery. Distance Range: 10 Meters. Speaker: 1 x 3W. Frequency Response: 80Hz - 15kHz. S/N Ratio: >70dB . Mic Range: 85cm.