| Features | |
| 3.5 mm in-ear style earphone Allows you to conveniently enjoy calls and music Equipped with a microphone， volume control and hands-free button Compatible with all digital devices containing a 3.5mm audio port | |
| General Specs | |
| Brand & Model | Bidenuo Z290i |
| Type | In-ear earphone |
| Microphone | Yes |
| Drive Units | 15 mm |
| Sensitivity | 118dB±3dB |
| Impedance | 32ohm |
| Frequency Response | 20-20000Hz |
| Microphone Sensitivity | -42dB±3dB |
| Plug Standard | 3.5 mm |
| Cable Length | 1.2 m |
| Compatibilities | iPhone 5， iPod Touch 5， iPod Nano 7， iPhone 4/4S， iPad 4， HTC and other devices with 3.5mm audio port |
