KTS-1766 BLUETOOTH SPEAKER.

1.OFF/ON turn on/off the speaker and adjust the main volume.

2. DC 5V: plug the micro USB cable to the speaker and connect other end USB port to the power source. (DC 5V)

3. USB slot: used to read the song files in FAT32 Format with maximum size of 32GB

4.TF slot: used to read the song files in FAT32 Format with maximum size of 32GB

5. Play/pause: under USB/TF Wireless mode, Short press for play and pause; press and hold to change the light mode.