Wireless Bluetooth Speaker Portable with Mic Handsfree Calling Support MicroSD TF Card U Disk MP3 Playback for Mobile Phone PC Tablet (Grey)

Specification: Built-in battery voltage:3.7V Battery Capacity:1200mAh Charging voltage:5V 500mA Frequency response:60Hz-18kHz S/N Ratio:75dB How to pair with the bluetooth devices: 1.Move the switch to on to enter pairing status,Blue LED indicator light flashing twice every second headset will report. 2.Enable the Bluetooth function of the device and search for available Bluetooth devices, then select this speaker from the search results. 3.support music play or pause,volume +/-(long press the next/previouse button to adjust the volume. 4.Built-in microphone handsfree calling,Voice prompt available in English.press the call button once to answer the call,long press the call button about 2s to reject the call.Press the call button twice to redial the last phone number. TF Card Mode Insert TF card to enter TF card mode automatically.The bluetooth will disconnect at this time and it will not connect with any bluetooth devices. AUX input Insert 3.5mm audio plug and press the mode button to switch mode to connect with your PC Laptop MP3 Player and the other devices. FM Mode Insert the 3.5mm audio cable and press the mode button to switch and then you can enter into FM mode and you press volume +/- to select Package Included: 1*Bluetooth Speaker 1*3.5mm Audio Jack Cable 1*USB Cable