legendary spy microphone, Sennheiser 5027 MM61

a "must have" for each professional spy!!!

location of production:

• germany

brand:      

• Sennheiser Electronic (Labor W); Wennebostel

year of production:

• 1965

operating mode:

• no external power supply
• for headphones or NF amplifier

material:

•   plasitic case (no Bakelit), thermoplast

dimensions:

• (BHT)     86 x 15 x 0 mm / 3.4 x 0.6 x 0 inch

remarks:

• frequency range 400 bis 4000 Hz, Impedance 2 kOhm
• portable, cable length 95cm, phone jack 2mm

weight:

•   0.019 kg / 0 lb 0.7 oz (0.042 lb)