This is an unusual situation, with four units being offered for sale simultaneously. The early model of this 2000GX was released in '71, but shortly after, Sony's Sky Sensor 5500 was released and quickly became a big seller. The Sky Sensor 5500, while having an attractive, precise vertical design when viewed now, didn't have much new inside. The tone control, split into bass and treble, was also overkill for the 12cm speaker, and in reality, it had almost no effect. Nevertheless, as National, which was vying for the top spot in 3-band radios, needed to offer a competitor. They released this later model, adding an FM transmitter function to the existing 2000GX and increasing the speaker output to 2.6W. Unfortunately, even that couldn't break the Sky Sensor's stronghold, and National seemed to have to settle for second place in practice, until the Cougar 7, which became a sensation with its military-style square design. Looking at the current used market nearly half a century later, the contrast is quite clear: the Sky Sensor, though expensive, mostly doesn't work, while the World Boy 2000GX, even with its aged appearance, is still fully functional. The QC of National was superior. This unit, according to the previous owner, was actually used as a working radio until it was passed on. Aside from the dial light being out and the indicator not working, there were no major problems, and the exterior was in very good condition. The light has been replaced with a lamp of the same type, and the indicator's connection has been repaired to confirm operation. The speaker grille has some peeling in the black paint, so it has been repainted with matte black. Overall, it is in very good condition, and apart from the antenna receiver being missing, it is a beautiful item. Looking at the listings here, some are very expensive after being serviced, but I won't put such a high price on something that's over 50 years old. The price is in line with the approximately 40 units I've sold here in the past, but it's still reasonable because it's in good condition. I will handle any defects not due to the buyer's responsibility, including returns, until the day after delivery, before evaluation. The sensitivity is not inferior to recent high-performance models. Rather, I think the dignified, natural sound is something you can't experience with recent models. The AC cord in the photo is Sony-made, but it fits, so I'll include it. I recommend this to those looking for a good model.