1.Bluetooth speaker 2.With microphone, can be answer the calls 3.Support TF Card / USB Flash Disk 1) Main function: Bluetooth speaker with FM radio 2) With microphone, can be answer the calls 3) Support TF Card / USB Flash Disk 4) Support USB Data download 5) Line In: Configure 3.5mm Stereo's Plugs 6) Output power: RMS 3W, THD=10% 7) Power Supply: 5V/1000mA, AC Power adapter, USB Power Rotate ...