Simple and Lightweight design Crystal clear sound with deep bass Single button remote with mic for calls and music playback Audio works on devices with a 3.5mm jack Microphone works on android, iOS and blackberry System Professional Twisted cable and durable anti-tangle design soft and flexible passive noise reduction silicone ear tips Accessories Included : soft silicone ear tips (S/M/L)" "Drivers: Dynamic Driver 9mm + 1Balance Armature Impedance : 20 ohm +/- 10% Sensitivity : 115dB±3dB Frequency Response : 20-20kHz Connector : 0.75mm gold plated (2-pin) Cable : Twisted sliver plated audio cable Cable plug : 3.5mm gold plated audio jack Cable length : 1.2m +/- 10mm Product weight : approx. 27g (with cable)