Product information:
Function: insert card, radio, voice prompt, call function
Type: Bluetooth speaker
Connection method: Bluetooth connection
Interface type: USB
Power supply mode: built-in lithium battery
Operation mode: button
Applicable people: general
Display: None
Shell material: metal
Speaker adjustment method: button
Color: blue, black, gold, bright black
Power supply mode: USB

Packing list:
Bluetooth speaker X 1