Portable Hifi Sound Bluetooth Speaker

Features: Wight: 190g Play time: 2-3h Charging time: about 1.5h Battery capacity: 400mAH TF card maximum expansion capacity: 32G 1. Turn on/off, long press 4 seconds. Bluetooth indicate light flicker and into Bluetooth match mode, turn off long press 4 seconds too 2. Play/Pause: short press will alternate play and pause. Double press will change mode 3. When receive calling, short press to answer call, double press will refuse the call 4. Double press will call the latest calling person when speaker on normal model 5. Volume adjust: rotate can adjust volume 6. Insert audio wire after turn on the speaker, will into AUX mode automatic USB read: can insert USB to listen music