August EP720, User Manual

Page: 5 / 6

-5-
-6-
E
n
g
lis
h
6. Specifications
Noise Reduction Level Up to 20dB (at 100 – 200Hz)
Noise Cancellation Working Current
Distortion
Impedance
Frequency Response
Battery
<1%
3.7V 120mA Li-ion
20Hz – 20KHz
32Ω
8µA – 10mA (volume level effects current)
SNR 94dB@1KHz
Charging Time 2 Hours
Battery Life Up to 13 Hours
Net Weight 27g
7. Troubleshooting
Problem Solution
Active noise cancelling
power LED not lit
The call button does not
answer the incoming call
No sound •
• Ensure the plug of the earphone are fully
inserted into audio port of music player Check the volume on the source device
•
to your phone Please check the 3.5mm audio connection
Battery life too short •
compliant USB charger
• Fully insert the power cable into the power
socket and ensure the LED indicator lights red Please fully charge your earphones with
Background
interferences •
interference with the audio signal.
• Please fully charge your earphones prior
first use Some smartphone power sockets can cause
• Please check the noise cancelling switch
• Ensure the earphones are fully charged