I am an Chinese seller,providing customers with high-quality and low-cost products. The types of products we sell include Home & Kitchen,Health & Beauty,Fashion Clothing,Electronics,Watches & Jewelry,and so on. We keep up with the most popular fashion trends. If you like our products, please follow us and become our followers and fans. Sincerely at your service .Please feel free to contact us if you have any questions.Specifications:Bluetooth chip uses a USB direct power supply and does not require charging, so the adapter can be used with a direct power supply through the speaker USB port.The Bluetooth receiver has no requirements for the system and is suitable for speakers, cars and power amplifiers.It has Bluetooth 5.0 and a transmission distance of 0-10m(about 33 feet), which is faster and more stable than the Bluetooth 4.0 version.The receiving function of the Bluetooth adapter turns the ordinary speaker into a Bluetooth speaker, so that the car without Bluetooth has the Bluetooth function, so you can easily listen to music, make calls, use the mobile phone to navigate and play in the car.It supports multiple audio mode playback and also supports audio devices with USB ports and 3.5mm jacks.Item Name: Bluetooth 5.0 Audio ReceiverMaterial: ABSAudio Interface: USB and 3.5mm JacksFeatures: Plug and Play, Faster Transmission Speed, Stable, with Receiving Function, PortableSize: 4cm x 4cm x 2cm /1.57" x 1.57" x 0.79" (Approx.)Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bluetooth 5.0 Audio Receiver1 x 3.5mm Cable1 x User Manual a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a