Z-1 Earbuds - Black/White VEP-003-360Z1BW 360 Stereo Noise isolating Earphones with flex 'anti' tangle cord system The stylish Z-1 has 360 Qube Stereo Noise isolating Earphones with flex 'anti' tangle cord system so you'll only hear the music you want to enjoy. Features 3.5mm plug with Ni plate 10mm Speaker with Bass Enhancement Qube Noise Isolating Technology Flex Anti Tangle Cord System Sound Sensitivity: 105db +/- 3bd Channel Balance: 3bd (at 1000hz) Rated input 3mW Max input 10mW Impedance: 18 ohms +/- 15% CE and ROHS approved Weight 2.0g Compatible with all common mobile/MP3 Player Devices including iPod/iPhone/iPad Specifications: Specifications Speaker Size 13.5mm Frequency range 10-25,000Hz Sensitivity 106±3dB(at 1 KHz,0.5Vrms) Impedance 16 Ohm Cable Length 125cm Jack 3.5mm