Headphones are designed for listening to music and making phone calls. The headphone housing is made of reliable and durable plastic with an original shape. Headset with a popular 3.5 mm jack is compatible with any modern phone. The headphones have a microphone for realistic speech transmission, a call acceptance button and playback adjustment, allowing you to switch between listening to music and calls. Characteristics:Resistance: 16 ohm;Built-in microphone;Connection connector: Mini jack 3.5 mm;Device length: 120 cm;Frequency response range: 20-20,000 Hz;Sensitivity: 93±3dB.