Fiio Pro BTA30 - Buttons and Ports Labeled; Device Controls; Device Ports

English High Fidelity Bluetooth Transceiver
Buttons and Ports Labeled
A. PAIR1 Bluetooth connection
indicator light
B. PAIR2 Bluetooth connection indicator
light
C. Power/Input source switch/
PAIR2 button
D. PAIR1/Pause/Bluetooth codec switch
button
E. Bluetooth receiving/
transmitting/DAC mode switch
F. Volume knob