- Color: Black<br />- ABS material housing<br />- Retro telephone receiver style<br />- High quality voice transmission<br />- Built-in microphone and speaker<br />- Frequency range: 20Hz~20KHz<br />- Sensitivity: -52dB<br />- Impedance: 150ohms<br />- Speaker diameter: 38mm<br />- Cable length: 2M<br />- Can eliminate over 96% phone radiation<br />- Compatible with Iphone Nokia HTC Samsung Sony LG BlackBerry cell phones with 3.5mm jack<br /><br />                                                                                                                                Dimensions: 9.65 in x 3.54 in x 2.76 in (24.5 cm x 9.0 cm x 7.0 cm)<br />Weight: 4.83 oz (137 g)<br /><br />