JVC GY-HM100U Manual page 26

AC adapter and DC input cable.
Power Adapter & DC Coupler - supply power from a wall outlet to the camcorder.
In addition, the Power Adapter serves the dual purpose of charging a battery pack.
Video cable & Headphones.
Video / USB Cable – used to connect the camcorder to a VCR, television, computer
(downloading files from SD Card) or other monitor and/or audio equipment .
Headphones – are used to monitor the audio as you record and also during playback.
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