Introducing our multifaceted 2-in-1 Bluetooth Car Kit, serving as a Wireless Aux to Bluetooth Adaptor. Imparting seamless Bluetooth V4.1 connectivity, it is designed to accommodate your audio streaming needs on the go efficiently. aux bluetooth receiver car hands-free calling 3.5mm lavalier audio adapter 2 in 1 Bluetooth Assisted Car Hands-free Kit 3.5mm Wireless Assist to Bluetooth Adapter Audio Music Receiver Mini MP3 USB BT V3.0 Player 2-in-1 Wireless Bluetooth V3.0 Car Kit: Mini MP3 Player and 3.5mm Aux Audio Music Receiver with Hands-free Functionality, USB BT Connectivity 2-in-1 Wireless Bluetooth receiver 3.5mm Aux Audio Music adapter with Hands-free Functionality USB BT Connectivity. Product model: Bluetooth receiver Interface type: 3.5mm Bluetooth version: Bluetooth 4.1 Product functions: Bluetooth receiver, music, calls. Material: plastic+metal colour: silver+black Package Contents: 2 x Bluetooth receiver 2 x 3.5mm adapter 2 x USB charging cable 2 x English manual