3M Peltor ProTac Shooter - Olive

Active level-dependent sound-insulation to detect ambient noise
SNR 32 dB; H/34; M/29; L/22
Battery life: about 100 hours
Weight: 355g (including batteries)
Powered by AA batteries (2x) (included)
Operating temperature: -20°C to +55°C (depending on the battery)
Audio input 3.5mm stereo for connection of external devices (eg radio, MP3 player, smartphone)
The headset will turn off automatically 4 hours after the last key movement
Warning signal at low battery voltage
Housing the electronics in the outer capsule area (to prevent sweat-induced corrosion)