Dual Audio Modes
1. Search & click 'Tronsmart Halo 200' to connect with device A.
2. Disconnect 'Tronsmart Halo 200' from the device A(Note that do not clear
the pairing record on the device).
3. Tronsmart Halo 200 will re-enter pairing mode.
4. Search & click 'Tronsmart Halo 200' to connect with the device B.
5. Click 'Tronsmart Halo 200' on device A to connect.