Canon Wireless File Transmitter WFT-E7A Instruction Manual page 118

Specifications
USA and Canada only:
The Lithium ion/polymer battery is recyclable. Please call 1-800-8-
BATTERY for information on how to recycle this battery.
When connecting to and using a household power outlet, use only AC Adapter
Kit ACK-E6 (rated input: 100-240 V AC 50/60 Hz, rated output: 8.0 V DC). Using
anything else can cause fire, overheating, or electrical shock.
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