Cool digital wired headphones type C compatible with Android and iOS. The hands-free kit consists of a simple design that highlights a distinctive look and perfect sound. They fit perfectly through isolation against outside noise for music enjoyment and calls. These headphones have an answering machine at the touch of a button and a built-in microphone. Suitable for smartphones with Type-C port that do not have a 3.5mm jack. Technical features: stereo. Built-in button on the cable, located behind the microphone (pause and switch song). 10mm diameter speaker Speaker impedance 32 ohms frequency: 20 Hz to 20 kHz. Sensitivity: 105 dB. Important note: The volume of the listening must be medium high when it is maximum (volume to stop), in addition to damage the hearing, it is possible that a slight echo is heard. Audio Port: Type C