This is a SONY MD Walkman MZ-E520, featuring a digital amplifier, 6-band equalizer, and G-Protection. - Brand: SONY - Model: MZ-E520 - Digital Amplifier: Yes - G-Protection: Yes - 6-Band Equalizer: Yes Thank you for viewing. This item is being sold as junk as the power has not been confirmed. Other functions are also unconfirmed. We are not responsible for any operational issues. We cannot accept negotiations for extreme discounts. Please offer a price that you would be willing to sell the item for if you were the seller. Thank you. Please contact us before purchasing if you are in Hokkaido, Okinawa, or other remote islands.