"A functional toy microphone whose primary output is amusement, not quality audio."
The '5W Output Power' refers to the built-in speaker, which is comparable to a small, entry-level portable Bluetooth speaker. It's loud enough for a living room, but will not overcome party noise.
This is a suitable purchase for parents seeking an inexpensive electronic toy for children's parties, car rides, or playtime. Its value is in entertainment and novelty, not audio performance.
Anyone needing to record vocals, even for amateur projects, should avoid this. The severely limited frequency response and toy-grade components make it useless for anything other than play.