JSP Sonis 2 Hi-Vis Ear Defenders SNR 31

  • Medium attenuation, adjustable ear protection
  • Suitable for substantial levels of industrial noise
  • Hygienic TPE construction for easy cleaning
  • Reflective stripes for increased wearer visibility


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Our Price:  £18.06
Excl. VAT. (£21.67 Inc. 20% VAT)

JSP Sonis 2 Hi-Vis Ear Defenders SNR 31

The JSP Sonis 2 Hi-Vis Ear Defenders SNR 31 are comfortable and hygienic, with a reflective head band for added visibility to colleagues in low light environments. They offer a SNR of 31, and are suitable for protection against substantial industrial noise, such as road works.

What Can the Ear Defenders Do for Me?

The ear defenders have several useful features. These include:

  • Performance: Outstanding acoustic engineering allows for an SNR of 31
  • Comfortable: Headband is cushioned for comfort and allows for ventilation, ear cups can be tilted and adjusted to find and optimum fit
  • Hygienic: TPE construction is easy to wipe clean
  • Hi-Vis: Highly visible cups and reflective head band for added low light protection

Who Can Use the Sonis 2 Ear Defenders?

The yellow ear defender has a medium attenuation factor at 107 - 111dB, and has achieved an SNR of 31. This means that the defenders are suitable for protection against substantial industrial noises and can be worn for long periods of time without developing fatigue. The following is a list of hazards and settings for which the ear defenders are suitable protection:

  • Substantial industrial noise
  • Construction and agricultural machinery
  • Road works
  • Forestry
  • Engineering

Please note that one size of the ear defenders should fit most users.

What Is SNR?

SNR stands for simplified noise reduction, and can be used to compare the different level of noise attenuation offered by hearing protectors. To establish the acoustic pressure on your ears from a hazard subtract the SNR value from the average noise level measured. To avoid hearing damage this number must not go above 87dB.

What Certifications Have the Ear Defenders Received?

The ear defenders have undergone a variety of tests so you can be sure of your safety at work. They have achieved the following certifications:

  • EN 352
    • ​SNR: 31
    • Low Frequency Noise: 21
    • Medium Frequency Noise: 29
    • High Frequency Noise: 34

What Do These Certifications Mean?

  • EN 352: This standard specifies the requirements for ear defenders offering protection from excessive noises

The materials, inner leakage, minimum attenuation and several other factors of the ear defenders have been assessed and found to conform with the requirements for hearing protection. The ear cups have an attenuation of 107 - 111dB and an SNR of 31 which suits them to high levels of risk.  

Technical Details

  • Materials:
    • ABS cups
    • Foam/PET combination cushions
    • Stainless steel wire
    • Man-made textile composite head band


Conformity Data
Declaration of Conformity Declaration of Conformity

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This item will be dispatched by Royal Mail, DPD courier or UPS courier.

The estimated delivery time for this item is usually 1-3 working days after dispatch when ordered before 14:00, Monday to Friday (excluding Bank Holidays).

Please contact our Customer Care Team on 020 7501 0598 for an up to the minute delivery expectation for this product.

UK Delivery Charges

Certain orders delivered to the UK are subject to a delivery charge; refer to the table below for more information. Please note that all values are listed exclusive of VAT.

Order Value UK Delivery Charge
Up to £39.99 £4.95
£40.00 and over FREE