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By certification 
Specification:
Model:B03
Output power:10W*2=20W(RMS)
Amplifier IC:CSR4.2 BLUETOOTH IC
Power:1800mA
Dimension:418(W)*152(H)*152(D) mm
Impedance:4Ohm
Frequency response:150Hz-18kHz
FM:87MHz-108MHz
Function:USB SD card read, FM radio, AC/DC power supply
Charging Input:DC-5V
Feature:
● Built-in 1200mah High performance li-battery ,Enjoy 12-15 hours of music at 50% volume, if you play it 1-2 hours every day at mid volume, it no need to charge in 1-2 weeks. Recharge in just 2-3 hours using the included Micro USB cable.
● Equipped with the advanced technology, compatible with all Bluetooth devices. And the phone can display the remaining power of the speaker,Speaker automatically reconnects to the last device used,Connect your devices in just 3 seconds.
● Crisp, Balanced Sound and unmatched bass for a Bluetooth speaker its size, plays loud and clear outdoors for beach days or camping trips.
● Built-in mic for speakerphone to take clear conference or personal calls out loud with a wireless range of approximately 30 feet.
Our service:
● We have rich experience ,can provide you good quality product at the most competitive price,and the newest design.
● 100%QC inspection before shipment.
FAQ
Q: How can i get to your factory?
A: Our factory is in Huizhou city,very near Shenzhen city,about 1 and half hour drive from Shenzhen Airport.
Q: What's the Warranty?
A: The warranty of our product is normally 12 months.
http://www.covivatech.com/
