1.Durable, slim and lightweight 2.Multiple holes design ensures clear sound, better music enjoyment 3.Humanized in-ear design isolates ambient noise for high clarity 4.Built-inmicrophone offers hands-free calling experience 5.Convenient one-button control, you can press to answer/reject calls or pause/play music 6.3.5mm standard plug, compatible with most mobile phones, tablets, MP3/MP4 Frequency Response Range:20Hz~22000Hz Resistance:32Ω Sensitivity:110dB Line Length:1.2m Connectors:3.5mm Frequency Response Range:100Hz~10000Hz Sensitivity:-42dB Interface definition:L/R/GND/Mic Brand Vivo SKU 100233680_NP-1020488907 connector_1 3.5MM