Cable length: 1.5 metres (detachable) Connector: 3.5 mm MiniJack plug, 4 pole Converter for PC: 3.5 mm female 4 pole MiniJack to 2 x 3.5 mm male 3 pole MiniJack Earphone: Driver unit: 40 mm Frequency range: 20 Hz – 20 kHz Impedance: 32 Ohm Microphone: Type: 6mm dia. electret condenser microphone 3V Direction: Omni-directional Frequency Response: 30 Hz – 20 kHz Impedance: 2.2 kOhm Sensitivity: -42dB ± 3dB For smartphone & PC. Inline microphone & answer button. With Sandberg Play'n Go Headset you get great sound in a beautiful headset with a foldable design, so you can easily carry it around. A padded headband and soft ear pads make the headset comfortable to wear even for extended periods of time. Can be connected directly to a smartphone. Adapter for PC included. The cable features a microphone and answer button for incoming calls, so you don't have to take the phone out of your pocket.