Feature:1. 1.Non-destructive assembly.Your earmuff still can be folding when the BT Adapter assembly.2. 2.Independent power supply.This adapter work independently, turn off the earmuff for better sound quality.3. 3.This portable, lightweight wireless adapter is the ideal wireless audio solution for every situationand application.4. 4.The unit is small and exquisite, but has powerful transmitting and receiving functions, which is convenient to carry.5. 5.BT adapter with BT 5.1 technology to let you enjoy high-quality music.Specification:TitleW1 BT Adapter Design for Walker's Series Earmuffs Convert Wire Earmuff to Wireless OneFeaturesNon-destructive assembly.Your earmuff still can be folding when the BT Adapter assembly.Independent power supply.This adapter work independently, turn off the earmuff for better sound quality. This portable, lightweight wireless adapter is the ideal wireless audio solution for every situationand application.The unit is small and exquisite, but has powerful transmitting and receiving functions, which is convenient to carry.BT adapter with BT 5.1 technology to let you enjoy high-quality music.SpecificationModel: HL BT AdapterBT Standard: BT v5.1Warranty: 1-yearTransmission distance: 30 metersMaterial: ABSColorBlackWeight10gPackage list1*HL BT Adapter1*Type-C cable for charging1*Instruction Manual1*Packing BoxPackage List:1*HL BT Adapter1*Type-C cable for charging1*Instruction Manual1*Packing Box