How to copy your car key

When you want to copy a car key,just in case you lost your key,you just use a tool:Chevrolet Remote Key Copy Machine,then you can copy your key.
before copy the original key please confirm two springs of copy machine have to contact with the metal part of key .left side contact with the metal part of key head.
right side contact with the round contacts.

customer bring the key which he want to copy and put on the copy machine as above picture.

Then Chevrolet Remote Key Copy Machine press the "copy" button of copy machine one time and you will hear beeps twice or three times then finish reading information from origin key.(remark:different car will hear different time beeps)

For more infomation about this Chevrolet Remote product,please visit:
http://www.obd2works.com/chevrolet-remote-key-copy-machine-p-1888.html