Feature:1. Premium Wire Material: The wire is made of high resilience TPE material, which can be expanded at will without deformation, easy to store and use.2. Anti Interference Design: Car bluetooth receiver adopts anti current interference circuit design, effectively isolate the current caused by the 'squeak', make the sound quality more pure.3. USB Power Supply: Car bluetooth receiver adopts USB direct power supply, no need to worry about power shortage and battery life.4. Restore Sound Details: Wireless bluetooth 5.0 adapter supports SBCG HD sound decoding, clearly restore music details.5. Plug and Play: Bluetooth conversion adapter is plug and play, convenient and universal for 3.5mm interface devices.6. Long Distance Transmission: Bluetooth conversion adapter built in antenna design, can achieve 010m/032.8ft long distance transmission.Specification:Item Type: Car Bluetooth AdapterMaterial: TPESize:Unstretched Line Length: Approx. 40cm/15.7inStretched Line Length: Approx. 110cm/43.3in (Elastic error 5cm)Color: Gray BlackOutput Interface: 3.5mmTransmission Distance: 10m/32.8ft Without ObstaclesExternal Power Supply: No External Power Supply.Package List:1 xCar Bluetooth Adapter Note:Please allow some error for manual measurement.