User guide
4.2 GENERAL FUNCTIONS
Power ON / OFF
Press   for 2 seconds
ON: 3 BLUE ashes + Ascending tone
OFF: 3 RED ashes + Descending tone
Volume
Tap   or   to adjust and set volume of 
current audio source
Mute 
Tap   and   simultaneously
Battery Check
In Standby, press   for 2 seconds:
• BLUE LED  = Full charge
• PURPLE LED = Half charge
• RED LED  = Almost empty
Enable/Disable Spoken 
Status Announcements 
(Enabled by default)
Via the Cardo Community
4.3 AUDIO SOURCES AND PRIORITIES
If two connected audio sources try to play audio simultaneously, 
your scala rider automatically determines which audio source to play 
through the speakers based on the priority of the connected devices.
Higher Priority
1. Mobile Phone audio or GPS instructions*
2. A2DP (Stereo Bluetooth) audio
3. AUX (for corded connection to MP3 Players)
* GPS instructions from Smartphone GPS Apps are 
prioritized like A2DP audio
Lower Priority
Incoming mobile phone calls interrupt ongoing A2DP music
scala rider
®
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