Bluetooth listening with SD/TF card headphone with FM radio

Features:
* Bluetooth headset lets you listen to music or take phone calls wirelessly
* Auto switch to incoming calls when playing music
* Compatible with Bluetooth enabled devices, such as most computers, mobile phones, Apple's iPhone 3GS/4, iPas,Apple's iPod, and MP3/MP4 players
* MP3 player function when plugged in SD/TF card
* FM radio function
Specification:
* Bluetooth 2.1 + EDR compatible
* Frequency: 2.4GHz ISM band
* Volume up/down, previous/next song control
* Built-in rechargeable li-ion battery
Bluetooth listening with SD/TF card headphone with FM radio