Here is a used 8 transistor from Sony. It says Super Sensitive on the front and this one really is. The radio is playing on a common 9 volt battery and does play loud and clear. The battery box is clean but there is a ding to the front grill on the left side. Otherwise, this one is nice. I have been using this for months and just kept it inside the leather case. This radio has an on/off switch on the top and a tone switch on the left side. It is a nice sounding radio.