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VI. Troubleshooting
a. The earphones are not pairing
Make sure that you increase the volume of the
earphones and the mobile device. Some
smartphones require to setup the Bluetooth
earphones as an audio output device before
sound is transmitted. Please check the
instruction manual of your mobile device for
details. If you are using a music player or
another Bluetooth
device, make sure that it
®
supports any of the A2DP, HSP, HFP, or
AVRCP stereo music profiles.
b. The caller can't hear my voice clearly
Adjust the volume on your mobile device and
earphones. Make sure there is no source of
interference nearby. Stay close to your
smartphone.
Technical specifications
Earphone
Type
Driver unit
®
Maximum
power output
Frequency
Impedance
Sensitivity
Microphone
Type
Directivity
Frequency
Impedance
Sensitivity
Connectivity
Connection
type and version
Supported
profiles
Wireless RF
frequency
Wireless range
MPN
Sport in-ear earphones with hooks
20Hz-20kHz
Omnidirectional
20Hz-20kHz
Compatible Bluetooth
HSP, HFP, AVRCP, A2DP
2.402GHz-2.480GHz
KSM-150
φ10mm
25mW*2
>=92dB
-95±3dB
Built-in
2.2K
-42dB±3dB
V5.0
®
65ft
2
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