Quotation are invited for Hearing Protector Headset Delivery Date: 2026/05/29 Delivery To: Support Services SUSE Delivery Address: 01 Lower Stion Road Observatory Metro Police opposite kwik Spar, OBSERVATORY Closing Date: 2026/04/17 Closing Time: 04:00 PM Description: 7 each x hearing protector headset Specification: * Hearing Protector Headset n decibels (dB), this indicates the maximum noise reduction under laboratory conditions. Typical ratings for headsets range from 20 dB to 30 dB. Single Number Rating (SNR): The European equivalent of NRR, often roughly 23 dB higher than NRR due to different calculation methods. Impulse Noise Suppression: High-end electronic headsets react in as little as 0.1 milliseconds to suppress sudden loud sounds like gunshots or explosions while keeping ambient sound audible. Level-Dependent Function: Active headsets often limit all sounds reaching the ear to a safe level, typically around 82 dB. Audibel Hearing 2. Audio & Communication Features icrophones: Many headsets use directional microphones to amplify low-level ambient sounds (like speech) while tracking and suppressing loud noises. Connectivity: Wireless: Integration of Bluetooth 5.0 or higher for streaming and calls. Wired: Common inputs include 3.5 mm AUX for radios or smartphones and specialized military connectors like the Nexus TP-120. Battery Life: Basic electronic muffs using AAA batteries can last 350600 hours. Rechargeable Bluetooth models typically offer 2040 hours per charge. Physical & Durability Specs Ingress Protection (IP) Rating: Look for ratings like IPX-5 for water resistance in outdoor or tactical environments. Weight: Industrial and tactical headsets typically weigh between 250g and 400g. Comfort Materials: High-quality models feature silicone gel ear cushions or memory foam for a superior seal and long-term comfort. 4. Standards & Certifications To ensure safety, look for compliance with these standards: ANSI S3.19-1974: The standard for NRR testing in the U.S.. EN 352 (Part 16): The European standard regulating earmuffs, active noise compensation, and communication devices. CE/RoHS: General safety and environmental compliance for electronic components. Tender Link : https://web1.capetown.gov.za/web1/procurementportal/RFQ/Details/319546
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