产品详细描述

Speaker spec：OD40MM  4Ω3W multi-media speaker

Rated power of speaker：3W*1

SNR：≥45dB

Working hours for outside sound：≥5 H Under 75% of volume

Distortion：≤3%

polymer lithium ion battery：3.7V/620MAh, decrease to 85% of capacity 

after 300 time charging and discharging  

Charging Voltage ：USB port  DC--5V  I≥500MA

Charging hours：≤3.5H

Applicable device：Apple IPAD,  ios iphone   Android Mobile Phone 

Frequency response：150HZ---15000HZ

Bluetooth version：CSR4.0  

Effective distance：≥10M

IPX rating：IPX6

Function：prompting tone

Button light up when works 

Micro USB for charging 

Accessories:micro USB Charging cable