Hot!A21 Portable stereo mini hifi super bass bluetooth speaker outdoor subwoofer loudspeakers Wireless mp3 speakers boombox !#!amp!*! FM radio for Phone PC

Specification:

Max Output Power: 3W

Bluetooth Version: 3.0

Driver:1.5"*2

Frenquency: 2.402-2.480GHz

MIC Sensitivity: -32db 

Receive Sensitivity: Better than +82dBm

Range: 10meters 

Data Transmission: Up to 3Mbps

UART Data Transmission Rate:115200bps

Charing Voltage: 4.8V –5.2V DC

Working Voltage: 3.7V –4.2V DC

Working Current: 300MA

Quiescent Current: !#!gt!*!1U

Antenna: Built in

With FM radio

color choice : black /red/ blue