Working voltage: battery 3.2-4.2v
Working capacity: 1200mAh
Charging voltage: DC 5V / 1-2a
Charging time: about 3 hours
Broadcast time: about 5 hours
Output power: 40 5W
Frequency response: 20Hz-20KHz
SNR: SNR: ≥ 90dB
If you want to know more about the product（details+price）, please send an email to firstname.lastname@example.org , and then we can talk in detail.
Attached our company profile and website link for your reference.
Thank you for your time.
For the product specification, pls refer to the pic