fm mp3 bluetooth radio headphones wireless cancelling headphones with 4gb memory card built-in mic electronic noise reduction safety ear muffs protection for lawn mower work by wulfpowerpro wulfpowerpro <b>product features</b><br><br> 1,nrr 29db reduces eardrums' exposure to loud sounds <br> 2,built-in bluetooth for mobile talking and music listening.<br> 3,digital fm/am radio for converting surrounding noises into your favorite radio program.<br> 4,built-in antenna with high reception sensitivity.<br> 5,auto search and frequency scanning function.<br> 6,4g memory card, pre-store 5 music<br> 7,rechargeable lithium battery<br><br> <b>package included:</b><br><br> 1 bluetooth ear defender<br> 1 800mah rechargeable lithium battery<br> 1 usb charging cable<br> 1 headphone cable<br> 1 user manual <br>