Casio 3452 Quick Reference Manual page 21

Charger: Operating temperature: 5°C to 35°C (41°F to 95°F)
Power Consumption: 5.0 VDC Approximately 0.9 W
Included Accessories: Charger, Micro USB cable

When unboxing, check to make sure that everything is included. If something is
missing, contact your original retailer.
For open source information, visit the CASIO website.
http://world.casio.com/manual/wat/
E-20