Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Weak transmitter

Just returned mine to amazon. The transmitter is so weak that you literally have to have the device touching your antenna if you want no static. Putting it within a couple feet will get you sound but it will be riddled with static. Anything further than 3 feet and your pretty much SOL. This is a far cry from the transmitters built into something like a Sirius or XM tuner. Using batteries or the 12v adapter makes no difference, it's still utterly useless. I would definitely not recommend this product.