Definitely not for professional transcribers!

I too purchased this transcriber as a backup machine. After one month of use, it developed a high pitched, ear piercing screech that would happen intermittently with no warning. They gave me the address of the authorized repair center in my area. When I called, I was told they no longer repair transcribers. A second call to Panasonic resulted in their suggesting I mail the unit to their Texas center where they would replace it with a refurbished machine. I purchased a new machine for full price, and they will give me a refurbished machine, even though mine was still under full warranty. Horrendous service from Panasonic. Luckily my OfficeMax helped me with a replacement. I would NEVER buy another Panasonic product after trying to get service from that company.