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
13601744484