ISOtunes IT-48 - LINK 2.0 Bluetooth Earmuffs
ISOtunes IT-48 - LINK 2.0 Bluetooth Earmuffs
The ISOtunes IT-48 LINK 2.0 represents the next generation of professional hearing protection, merging high-fidelity audio with industrial-grade safety. Designed for professionals working in high-decibel environments, these Bluetooth earmuffs offer an impressive 25 dB Noise Reduction Rating (NRR) while delivering crystal-clear wireless connectivity. Featuring an upgraded padded headband and memory foam ear cushions, the LINK 2.0 is engineered for all-day comfort during the most demanding shifts. With its dual-power configuration, you can rely on the internal rechargeable battery for up to 50 hours of runtime or swap in AAA batteries for extended remote use.
Performance Features
- Advanced Connectivity: Bluetooth 5.0 technology supports dual-pairing, allowing you to stay connected to two devices simultaneously.
- SafeMax™ Technology: Built-in volume limiting ensures audio output never exceeds 85 dB, maintaining OSHA compliance and protecting your long-term hearing.
- Durability: IPX4 rated for sweat and water resistance, built to withstand the rigors of construction sites and industrial workshops.
- Superior Communication: Integrated background noise-reducing microphone ensures clear calls even in loud environments; also compatible with the ISOtunes external boom mic (sold separately).
- Extended Battery Life: Provides up to 50 hours of life via the rechargeable lithium-ion pack or up to 100 hours using 3 AAA batteries.
Technical Specifications
| Noise Reduction Rating (NRR) | 25 dB |
| Bluetooth Version | 5.0 |
| Protection Standards | ANSI S3.19-1974, OSHA & NIOSH Compliant |
| Battery Type | Rechargeable Li-Ion or 3x AAA |
| Charging Port | USB-C |
| Water Resistance | IPX4 |
What's Included
- (1) ISOtunes IT-48 LINK 2.0 Bluetooth Earmuff
- (1) Rechargeable Lithium-Ion Battery
- (1) USB-C Charging Cable
- (1) Quick Start Guide
Shipping & Returns
Shipping & Returns
Free Shipping Canada Wide* on Orders Over $149
Orders over $149 (before tax) that weigh 50 lb or less ship free.
Free Shipping Policy Restrictions
Large or heavy items (over 50 lb) ship at the most economical rate available. Orders shipping to the Northwest Territories, Yukon and Nunavut are not eligible for free shipping. *Our free shipping policy is subject to change without notice.
How long will it take to get my order?
Most orders arrive in 2–5 business days after dispatch. Orders within Ontario often arrive the next business day. Expedited shipping is available at extra cost on request.
Most in-stock orders placed by 1:00 PM ET (Monday–Friday) ship the same day. Orders placed after 1:00 PM ET, on weekends or on holidays ship the next business day.
Large, overweight and LTL freight orders may need 1 or more extra business days to prepare.
What shipping carriers do you use?
Most orders are shipped courier via Purolator, UPS, or Canada Post. We will use other carriers at our own descretion depending on Product size and weight.
Do you ship overseas?
We are not currently shipping to the USA. We are currently mainly shipping within Canada, and we are slowly adding Other Countries. Please Contact us if you are unable to Checkout. See more out International Orders HERE
I only received part of my order, where is the rest?
Your order may ship in more than one package depending on the quantity or size of the products purchased. Also, items in your order may ship from either of our 2 locations and arrive in separate deliveries.
Sometimes we place smaller items from your order inside of one box to save on shipping so always open all boxes to confirm what you have recieved.
Can I return my product?
Returns and exchanges follow the manufacturer's satisfaction guarantee for each brand. Please contact us before sending anything back, and we will tell you where to send it.
If a product is defective on arrival and you notice it and contact us within 3 days of delivery, Wise Line Tools will handle it and pay the shipping.
You pay the shipping cost of returning an item, or you can bring it to either of our stores.
See our Returns Policy and Warranty Information for details.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
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How long does it take to process an order?
How long does it take to process an order?
Orders are typically processed within 1 business day. You will receive a confirmation email with tracking details once your order has been shipped. Please note that processing times may be slightly longer during high-demand periods or sales events.
Do you ship internationally?
Do you ship internationally?
Yes, we offer international shipping to most countries. Shipping rates and delivery times vary depending on the destination. Any applicable customs duties or taxes will be the responsibility of the recipient. We are not currently shipping to the USA.
What is your return policy?
What is your return policy?
Returns and exchanges follow the manufacturer's satisfaction guarantee. Please contact us before sending anything back. If a product is defective on arrival and you notice it and contact us within 3 days of delivery, Wise Line Tools will handle it and pay the shipping. You pay return shipping, or you can bring the item to either of our stores. See our Returns Policy and Warranty Information.

