Sennheiser IE 100 Pro Wireless Black, Dynamic wireless in-ear headphones, With IE Pro Bluetooth adapter, Impedance: 20 Ohm, Frequency range: 20 - 18,000 Hz, Sound pressure level (SPL): 115 dB (1 kHz / 1 Vrms), Distortion factor at 1 kHz: < 0.1 % (1...
Thomann Italia