Wireless Stereo Retro Speakers Portable Bluetooth Vintage Speakers with Hands-Free Calls Connectable SD Card Slot AUX

New Arrival Dosmix Portable Bluetooth Speaker Retro Mini Portable Wireless Speaker USB/TF Card Music Player Subwoofer Speaker

Main Feature:

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