HuntGold 1X TF Card SH-S6 Sport MP3 Player Headset FM Radio Foldable Wireless Headphone Size: 18cm x 17cm x 3.5cm - 7.09inch x 6.69inch x 1.38inch Connection Type: USB 2.0 Power Source: Built-in Rechargeable Battery Audio Port: 3.5mm FM Range: 87.5 C 108 MHz