Main Features:
Support music-playing
Support the cell phone hands-free calls, re-dialing functions
Bluetooth transmission function
Support FM radio function
Support Line-in function
Support Micro SD card music playing

Specification:
Bluetooth Chipset: BLUETRUM5337  (Bluetooth Version 5.0)
Working distance: ≥10M
Speaker: 4Ω 3W
Rechargeable lithium battery: 400mAh
USB charging port: Micro USB
Dimension: 62mm×57mm×40mm    
Weight: 125g
Color: red, black, blue, silver