Transistors: (Sony) 2T512, 2T521, 2T523, 2T66, 2T85 x 2 [1T23]
Speaker: 2-1/2"
Output: 180mW
Power source: 9V : BL-006P

Note: Shortly after production began, Standard switched to the following Hitachi transistors:
Note: HJ23D, HJ22D, HJ22D, HJ15, HJ17D x 2 [1N34A]