Description:Bluetooth 5.1 receiver: digital optical fiber analog audio converter, clear and stable transmission, compatible with multi-protocol transmission, faster and more stable.Ordinary speakers turn into Bluetooth speakers in seconds: connect to 35mm audio or RAC audio interface, and the speakers without Bluetooth function can also be played wirelessly.HiFi shocking sound quality: Bluetooth 5.1 chip, lossless transmission, on-site sound quality, zero delay in listening to songs.Strong compatibility: rich interface and multi-function, built-in digital signal to analog chip, support all kinds of interface equipment connection.It can be used for car Bluetooth adapters, making calls, navigation, and listening to songs without errors, making driving safer.Specification:Model: BLS-B35Frequency response range: 10Hz-20kHzSignal to noise ratio:> 110dBDistortion + noise:<0.02%Bluetooth version: 5.1Product material: ABS plasticEffective distance: 20 metersPerformance: HiFi levelSupport: A 2DP/AVRCPU disk support format: WAV.WMA.APE.FL AC.MP3 etc.Size Chart:85x65x25mm/3.35x2.56x0.98inchPackage Includes:1 Piece Host1 Piece 3.5 Audio Cable1 Piece Charging Cable1 Piece RCA audio cable1 Piece Fiber Optic Cable1 Piece Manual