Instruct: Classify a given review as either positive or negative.
Query: ECTACO Partner ER800-VERY BAD!!

This product shipped from a third party seller listed on Amazon. There was a software problem as well as a problem with the rechargeable battery. As soon as it was removed from the charger, it powered off. Repeatedly. When the seller was informed of this he said there was no guarantee on electronic products and so I was stuck with it. This seemed unfair especially since I had paid over $ 460 for it. I am a regular shopper from Amazon and I find myself at a loss about what to do.