Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It's NOT 5.8 GHz

The cordless phone works, and is clear. But be warned. This is not a true 5.8 GHz phone. The base transmits at 5.8 GHz, but the phones transmit at 2.4GHz. So if you're buying this in order to reduce interference with a wireless network (or from a microwave), look elsewhere. It will not solve your problems.