Brand New RM-510 Remax In-Ear Stereo Earpiece Earphone Brand new instocks, comes with a tin metal casing and extra earbuds! Price: $17.90 ONLY! Colour: BLACK / WHITE Frequency range: 20-20000HZ Level of sensitivity: 87-3dB Mic Sensitivity: 42+-3dB Impedance: 16-15% Maximumpower£º10mW Distortion: <1% Unit size: 10mm Plug pin: 3.5mm Cable Length: 120mm Noise isolation, Precise bass, High fidelity sound. Compatible with all mobile devices such as iPOD, MP3 players, MP4 players, iPhone, iPAD, iPAD Mini, android and other mobile handsets. Enjoy FREE postage and FREE gift while stocks last!