ISOtunes: Bluetooth headphones especially for workers

For more than three decades, ISOtunes has been producing high-quality hearing protectors and headphones, which are primarily designed for use at work and convince with sophisticated features such as intelligent noise cancelling!
Unlike other manufacturers, ISOtunes focuses on high-quality Bluetooth transmission and excellent sound quality.

The Sport Defy series: Perfect for hunters

These Bluetooth headphones from ISOtunes are perfect for hunters and sport shooters who want to protect their ears while listening to music or making calls - or amplifying ambient noise.
SafeMax technology limits the volume to 85 dB, while the SNR of 30 dB provides medium to high attenuation - thanks to soft memory foam ear pads!
Calls are no problem either, as the noise-isolating microphone filters ambient noise and makes your voice clear and distinct.

Also included: A long-life rechargeable battery

In addition to the headphones, the scope of delivery includes a lithium-ion battery with matching micro USB charging cable as well as a quick start guide and operating instructions!
Alternatively, you can also operate the headphones with three AAA batteries instead of the included rechargeable battery (not included) - with the rechargeable battery you will achieve more than 11 hours of runtime, with the batteries even 22 hours.
Thanks to the IP45 sweat, dust and waterproof housing, these headphones are particularly robust, while they offer very good sound quality thanks to the Bluetooth 4.2 standard (incl. support for Siri and Google Voice)!