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Charge of a minimum of 30 minutes needed for complete setup.
The speakerphone can be charged with a wall charger or with a USB cord and your PC. The
power LED on the speakerphone will be solid red when charging and off when fully charged.
A full charge with a wall charger will take approximately 1.5 hours.
NOTE Use only the provided Calisto 620-M USB wall charger. Other Plantronics wall chargers will
not work with the Calisto 620-M; however, the Calisto 620-M charger can be used to charge other
Plantronics devices requiring a micro USB power supply.
A full charge with a USB cord and your PC will take approximately 2.5 hours.
NOTE To charge the speakerphone with the USB cable and PC, the PC must be on and in an active
state (not standby).
Turn speakerphone off when not in use to save battery power.
Charging level
Red LED
Battery charging
Battery full
Charge your speakerphone
Battery charging status
7