Sennheiser IE 40 Pro Clear

The new in-ear monitoring headphones with precise sound at both low and high sound pressure levels for maximum control on loud stages.
Frequency response 20 - 18,000 Hz
Sound pressure level (SPL) 115 dB (1kHz / 1 Vrms)
THD, total harmonic distortion < 0.1 % (1kHz, 94dB)
Impedance 20 Ohms
Cable length 1.3m (4.3 feet)
included:
3 Silicone Adapter (S, M, L)
1 Foam Adapter (M)
1 Soft pouch
1 Cleaning tool