I don't think $150 will be enough for you to buy any good mining device which could be profitable to mine even with free electricy due to high difficulty.
You can check different mining device from bitmain https://shop.bitmain.com/main.htm?lang=en
another list of bitcoin miner here https://www.bitcoinmining.com/bitcoin-mining-hardware/ and also there is good comparision of bitcoin mining hardwares here https://en.bitcoin.it/wiki/Mining_hardware_comparison