Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Does not work past max 30-40 feet

I feel scammed- I have the two links of the extender in direct site of each other, and about 30 feet from each other, and it barely works. Extend beyond that, or try adding an obstacle or a wall- and NOTHING! Do not waste your money on this product...Avenge my mistake and avoid this product!!!