ISOtunes Sport Advance BT 2.0 Protective Ear Plugs 26 dB 1 Pair OD Green Universal. 0 earbuds combine Bluetooth with our signature Tactical Sound Control hearing enhancement and electronic noise suppression in our most durable build yet so you can maximize your performance in the field and beyond. Specifications for ISOtunes Sport Advance BT 2.0 Protective Ear Plugs: Manufacturer: ISOtunes Sport NRR: 26 dB Quantity: 1 Color: OD Green Battery Type: Lithium Ion Features of ISOtunes Sport Advance BT 2.0 Protective Ear Plugs Tactical Sound Control Technology offers level-dependent protection to enhance users safety and situational awareness Ultimate Durability with an IP67 rating an MIL-STD-810H testing to protect against dust sweat water and impacts Reinforced Audio Cables constructed with woven synthetic aramid fibers to withstand heavy duty wear and tear Redesigned Earhooks flex to adapt for a custom fit while standing up to prolonged wear and tear High-Fidelity Audio Experience from custom-tuned full range dynamic drivers Package Contents: ISOtunes Sport Advance BT 2.0 Protective Ear Plugs 4 pairs of TRILOGY Tall Foam eartips in 4 sizes (XS S M L) 1 pair of triple-flange silicone eartips 1 zippered rigid case 2 pairs of adhesive wind noise filters USB-C charging cable Replacement accessories are available ISOtunes Sport IT-36B: Advance BT 2.0 Protective Ear Plugs 26 dB 1 Pair OD Green Universal