The Key Features include:

• Hearing protector helps protect against harmful noise, whilst allowing ambient sounds to be heard
• Built-in level-dependent function allows the wearer to hear ambient sounds, such as conversations, machine sounds and warning signals
• 3.5 mm stereo jack to connect to your mobile phone or two-way radio to hear the call right in your ear
• Auto power off turns the headset off after 4 hours of non-use, to save energy and a low-battery warning informs you when to change batteries
• Voice-guided menu system so no need to take your headset off
• To reduce the corrosion caused by sweat the electronics are located in the outer part of the cup