Product information:
Function: card, waterproof, dustproof, anti-drop
Applicable scene: desktop, mobile and portable
Connection method: Bluetooth connection
Interface type: USB
Frequency response range: 100HZ-20KHZ
Power supply mode: built-in lithium battery
Built-in battery capacity: 500mAh-800mAh
Shell material: plastic

Packing list:
Charging cable + manual + audio *1