Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Input: Consider Input: Excellent product. I was having difficulty hearing and also getting a comfottable fit with the included ear hook that came with my Jabra JX-10 Series II Bluetooth headset. I removed the hook and attached one of the 6 gels that came in the pack to the headset and found that the volume increased 40% and I was able to achieve a comfortable fit. The headset is small enough and light enough that the gel holds the headset in the ear. I was about to give up on this headset (and all earhook type Bluetooth headsets) prior to getting the gels. If you are looking for a comfortable (and econimical) alternative for earhook type headsets, I strongly recommend that you give these a try. They are well worth the price.

Output: Positive

Input: Consider Input: You aren't saving any being this adapter. I purchased this for a 12" G4 Powerbook. The power it supplies goes on and off constantly. This can't be good for the computer. It certainly doesn't charge it. Don't waste your money on this Macally adapter. Try to find an original Apple adapter if you can.

Output: Negative

Input: Consider Input: I was hoping to have a condensed, to-the-point, informative guide on giving birth. I had missed my window of opportunity to be in a class and decided I preferred to be able to watch a video from home anyway. I feel that a lot of time is wasted in this video with theatrics and cheesy humor. I ended up fast forwarding through a lot of it only to realize she was still desperately trying for laughs 5 minutes in to one point.I am probably going to purchase another video simply for the fact that her style irks me!
Output: Negative