User's Manual

B45 User Manual
一. Product Description
This is a simple business style in-ear Bluetooth earpiece, with a built-in Bluetooth Qualcomm
chip that ensures a stable connection for clear voice calls and music listening. Besides, it
features 24 hours battery life and a long standby time, brings more convenience to your life.
It should be noted that the Bluetooth connection may be blocked by walls, affected by
electronic interference, or interrupted due to over-distance. Please read this user manual
carefully before using the earpiece to ensure correct, safe usage and keep it in good condition.
二. Product Instruction
1. Functional Keys Instruction
(1) On/Off Switch Key ( No.�)
Push up to turn on and push down to turn off. (Note: The LED indicator will keep flashing in
red and blue alternately when the earpiece is on pairing mode.)
(2) Volume Key (No.� and No.�)
 Short press “+” to volume up; long press “+” for 2 seconds and skip to the next song.
 Short press “-” to volume down; long press “-” for 2 seconds and back to the previous
song.
(3) Multifunctional Button (No.�)
 Calls Control: Under calling state, press once to receive calls; long press for 2 seconds to
reject calls. Under receiving calls state, press once to hang up calls.
 Under the music playing state, press once to play or pause the music.
 Under the non-calling state, double-click to redial the last phone number; long press for 2
seconds to activate Siri or voice assistant. (Note: While the LED indicator is flashing in
red and blue alternately, press the on/off switch key and volume up “+” key at the same
time for 6 seconds, when hearing a “DUDU” sound, the Bluetooth function has been
reset.)