Teastar Rechargeable Wireless Bluetooth Headphones Foldable Headset Overear Headband Music BluetoothEarphones Support FM Radio TF Card Playback for Smartphone Cell Phone PC Computer Tablet (Black) 4 in 1 Multifunctional stereo Bluetooth Headphone: Wireless Stereo Bluetooth + Card MP3 player + Wired Headset function + FM Radio. 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 built-in Mic, bring you superior sound effect. Best choice for listening to music, watching movie, chatting online, etc. Built-in microphone,supports hands-free function, conveniently answer the incoming call during travel.You can answer or reject the call through this headset without taking out your cellphone after you connect it with your cellphone.