Specifications: 1. The 5.3 version of the new Bluetooth receiver can display the screen, Bluetooth playback distance is barrier-free 15 meters transmission, long-distance music enjoyment.Bluetooth call with DSP noise reduction technology, the sound is clearer.2. Turn on the machine and automatically connect back to the paired Bluetooth device. There is no device connection for five minutes. It is automatically turned off and easy to use.3. Support Bluetooth stereo music DSP technology, high-definition lossless sound quality, can be connected to two mobile phones at the same time, with hands-free call, voice assistant and other functions, at the same time also equipped with voice assistant SIRI function, when connecting mobile phone Bluetooth, can wake up voice assistant "Siri" function, driving .4. The newly upgraded Bluetooth 5.3 low power consumption and stable transmission, which improves the transmission distance and has clearer sound quality.5. Continuous use for 12 hours, built-in 240mAh rechargeable lithium battery, can be used while charging, lasting.Real-time time display, automatic synchronization of mobile phone time after connecting mobile phone Bluetooth, 24H time display.Description: Type: Bluetooth car hands-freeApplicable mobile phone models: allInstallation type: AUXOutput mode: hornInput voltage: 5(V)Bluetooth: YesSupports EBook Reading: NoOperation Mode: Touch ToneSupports FM: NoSupports Recording Function: NoDisplay Size: 1.1 inchesExternal Memory: No Audio FormatSupport: MP3, WAVIt can support two mobile phones to be connected together. Turn on the Bluetooth of the mobile phone to search for "BR11" pairing name, and click on the pairing name to connect to Bluetooth. It is convenient and quick to use.The car upgrade car Bluetooth is inserted into the car AUX port to transform the car audio into car Bluetooth and enjoy music at any time; The old audio upgrade Bluetooth audio is connected to the AUX audio socket, and the audio without Bluetooth function can be transformed into Bluetooth audio. The earphone is inserted into the 3.5mm audio port and instantly becomes a Bluetooth earphone, and the old earphone shines again.Material: ABS colour: blackPackage Contents: 1 x Host1 x Metal plug1 x 3.5mm audio cable1 x USB charging cable1 x English InstructionsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.