ISOTunes HP Defy Slim Basic
ISOTunes HP Defy Slim Basic Over Ear Electronic Hearing Protection- Protection from high-impast noises in under 2 milliseconds- IPX4 Protection- 27 SNR Tested & Approved to ANSI s3.19-1974- Lightweight, only 289 grams- 2x AAA Battery, up to 300 hours use