Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Just so you know

Just so you know. I you have the genuine Panavise 809 and need the extension, just call Panavise and they will send the extension for free.I haven't had mine long so waiting on the extension to call, via USPS, but works well except that that I had to have my camcorder up-side-down due to NOT having the extension.On rough roads your picture may be jerky but remember, the Panavise 809 does not have shock absorbing so it feels what you the drive feels (can't remember seeing a mount that did have absorbing features at this price anyway.)