Block out background noise with these ear defenders from 3M. The noise-attenuating headset provides robust hearing protection against hazardous sound levels. With an SNR of 33dB, it's an effective solution for use in loud environments. You'll also be able to communicate effortlessly with others, thanks to the inbuilt two-way analogue radio and waterproof microphone. As the battery has an operating time of up to 18 hours, it'll work alongside you right through your shift.

• Bluetooth multipoint functionality enables connection to multiple sound sources simultaneously
• Voice-operated transmission for ease of use when you've got your hands full
• Battery status indicator lets you know when to recharge
• External jack provides another way to get connected

• Construction sites
• Manufacturing plants
• Motorsports

It uses a lightweight rechargeable Li-Ion battery, which is included for convenience.