<ul><li>3.5mm audio jack, provides a simple wired connection of a variety of music players (Such as, MP3 / MP4, etc) without Bluetooth function.Easy to pair with almost any Bluetooth-enabled audio / music players devices, such as, Smart Phones, Tablet PC, Laptop, NoteBook, etc.Be designed with two High-grade speaker and has built-in Mic,,powerful bass system, bring you superior sound effect. Best choice for listening to music / FM Radio, watching movie, chatting online, etc.Supports hands-free function, conveniently answer the incoming call during travel.Bluetooth version: 4.2-5.0Operation Distance: 10m;Plug Type: 3.5mmColor:White, Green, Blue, Black, Red (Optional)Support:Bluetooth, Aux in, TF Card, FM radioThe output frequency: Class 2</li></ul>