Tune out ambient noise while enjoying your favorite radio station with the 3M TEKK Protection WorkTunes Hearing Protector and AM/FM Stereo Radio. The hearing protector offers a noise reduction rating (NRR) of 22 dB, and the AM/FM radio features digital tuning with an LCD. The lightweight, fully adjustable design and soft foam ear cushions ensure comfortable wear. MP3 and scanner compatible. Requires 2 AA batteries (not included).