This item was used by my mother-in-law. I turned it on and tested it, and the sound is clearly audible. The instruction manual can be downloaded from the HP website, and I will include a printed copy. There are some minor scratches and stains on the back, but overall it's in good condition. It has 3 modes and seems suitable for phone calls, meetings, daily life, etc. You can find more details on Amazon and Rakuten.