The TL-105 PRO Bluetooth Two-Way Radio Communication Earmuffs are equipped with both a wireless intercom module and a Bluetooth module, offering a communication range of up to 1500 meters. They can connect to radios for clear and unobstructed communication. This product is approved for use in explosive environments (Ex). It is suitable for noisy environments such as petroleum and petrochemical industries, mining, quarrying, industrial maintenance, and shipbuilding factories.