The step-up transformer TM3 has a step-up ratio of 1:15 and has got connection wires instead of PCB-pins.
The mounting bracket shown in the picture can be ordered seperately and is not included in the shipment by default.

Specifications of the TM3 :

• transformation ratio :  1 : 15
• frequency range +/-3dB   :  30 - 25000 Hz
• max. input voltage @ 20Hz :  800mV
• primary connection :   microphone of approx. 200 ohm
• secondary connection :  min. 45kohm
• primary wires : green - grey
• secondary wires :  red - blue
• max. voltage between primary and secondary :   100V
• dimensions excl. screwthreat (dia x h):  22 x 23 mm