Technical parameters:
Bluetooth standard: 2.1+EDR
Transmission distance: 10 meters
Frequency effect: 100Hz-18KHz
Machine speaker: 40mm, 4Ω 3W
Input power: DC 5V
Functional descriptions:
Bluetooth functionality
Memory function, resume playback
Built-in lithium battery, environmentally friendly and practical
Built-in FM radio
Card reader features and audio features