Panasonic RP-HF100ME-A blue

Powerful Sound: 30mm Driver Unit and Neodymium Magnet 3Way Style for Easy Portability: Inside Folding Style with Swivel Mechanism Outdoor Style: A Lightweight, Simple Design for Versatile Use Impedance (Ohm): 26 ±15%Ω Sensitivity (dB mW): 103 dBmW（at 500 kHz) Max. Input (mW): 1000 mW (IEC) Frequency Response (Hz - kHz): 10 Hz - 23 kHz Cord Length: 1.2 m Weight without cord: 137 g net, 113 g without cord MiniPlug (3.5mm in diam.): yes Plug (Ni:Nickel G:Gold): Nickel