Main Points:
TF card slot
Bluetooth technical
Microphone & hands-free call
USB Disk
High Capacity Lithium battery
Descriptions:
Materials: Plastic
Bluetooth version: 3.0 + EDR
Wireless range: 25m
Frequency responses: 100Hz-20KHz
Speaker driver: 45mm/3W/4ohm
Battery: 1200mAh Li battery
Power source: micro USB charging/ built-in battery
ON/OFF button ,V+/V-, pre/next
