产品参数：

Bluetooth version：V2.1+EDR

Bluetooth transmission power:   CLASS2  4dBm

Bluetooth working frequency：2.4GHz

Charging voltage:    DC5V/500mA

Working voltage：DC 3.7V

Batterycapacity:600MA

Music playing time：4H

Talking time:8H

THD:≤0.1% (3.7V/1KHz/1.8W)

Signal to Noise Ratio：≥95 db

Speaker parameter :4Ω3W ф40MM

Bluetooth range :10-20m

"Colour :red ,blue,green,

black,yellow"

Feature and function:

Portable, hanging portable design

Bluetooth wireless audio transmission

Ariety of classic color for choice

With phone handsfree

Computer small speakers

Car bluetooth

FM radio

Card speakers

Packing detail:

Product size: 108*54*37mm

Gift box size: 127*41*56mm

30PCS/CTN  40*25*15CM  8KG