Double Power Technology BT-200 - Manual (Page 8)

8 EN
BT-200 Operation-Bluetooth (CH01)
Change device:
Speaker can ONLY connect to one device at a time.
Reboot speaker, causing it to enter discover mode.
Turn Bluetooth on.
The other Bluetooth compatible device will find "BT-200".
Sync and pair the two devices.
Once connection is established, begin to play music,
make, answer, or end a phone call.
Note:
It is preferred to wait 15 minutes between switch. If
asked for PIN, enter "0000".