Specification Beyerdynamic Tesla T70

Transducer type Dynamic
Operating principle Closed
Frequency response  5 Hz - 40,000 Hz
Impedance 250 Ω (T 70) / 32 Ω (T 70 p)
Nominal SPL. 104 dB (1 mW / 500 Hz)
Nominal THD <0.05% (1 mW / 500 Hz)
Power handling capacity 200 mW
Sound coupling to the ear Circumaural 
Ambient noise attenuation 18 dB
Headband pressure 2.8 N
Weight without cable 330 g
Cable 3 m (T 70) / 1.2 m (T 70 p) / single-sided
Connector Gold vaporised mini stereo jack plug (3.5 mm) & 1/4" adaptor (6.35 mm)
Accessories Carrying case (T 70 / T 70 p) inflight adaptor (T 70 p)
Max. SPL 127 dB (200 mW / 500 Hz)