Experience Seamless Connectivity 4-in-1 Bluetooth 5.0 USB Audio Adapter For Transmitting And Receiving In-Car Bluetooth Receiver With Hands-Free Calling Feature: Versatile Design Integrates both receiving and transmitting functions, adaptable to various scenarios, catering to a range of needs. High-Speed Bluetooth 5.3 Harnesses the latest Bluetooth 5.3 technology for stable and prompt wireless connections, ensuring seamless audio transmission. Broad Device Support Works with a broad array of TV and computer devices, suitable for both home entertainment and office setups, offering seamless connectivity. Wireless Liberates from traditional wired connections, abolishing distance constraints, and providing enhanced flexibility in audio transmission. User-Friendly Interface Intuitive and straightforward control, featuring instant switching between receiving and transmitting modes with a single tap, enabling users to effortlessly enjoy a premium audio experience. Product parameters: Product type: Bluetooth adapter Bluetooth: Bluetooth 5.3 MaterialPlastic Interface: 3.5mm/USB Distance: 15 meters without barriers Power supply: 300mAh polymer battery Bluetooth standard:5.0 ColorBlack Package size:5x3.0x2cm/1.97x1.18x0.79in Product Size4.4x2.0x0.9cm/1.73x0.79x0.35in Gross weight:20g/0.044lb Net Weight20g/0.044lb The Package Include: 1x Bluetooth adapter 1x manual