3
Earphone/
Charge Plug
Volume Up Button
＋
－
Volume Down Button
Power Switch
LED Indicator
Key Definitions
Search Mode
：
Red/Blue indicator lights
Unlinked
：
Blue blinks twice every 2 seconds
Connected
：
1 Blue flash every 6 seconds
Music Mode
：
2 Blue flashes every 6 seconds
Phone
：
3 Blue flashes every 6 seconds
Incoming call
：
Blue flashes continuously
Communication Mode Exchange
：
3 Red/Blue flash only
Hint for Communication Mode
：
Air
：
Red flash once
Bone
：
2 Red flashes
Erase Pairing List: 2 slow Red flashes
Signal Descriptions
Music Equalizer Mode
H501 is equipped various Music Modes for user preferences.
Each mode has its own preset equalizer levels. Press the
Power Switch twice totoggle the EQ Mode in sequence
：
Normal, Bass, Treble, Rock, and Jazz.
