Specifications Name Car Bluetooth Receiver ChargerBluetooth Version 5 1FM Frequency 87 5 MHz 108 0 MHzBluetooth Effective Distance 10 metersUSB Interface High speed USB 2 0Screen LED ScreenPower Supply DC 12 24VCurrent Output USB A 5V 2 4A max PD 30W 5V 3A 9V 3A 12V 2 5AWorking Current 10 2000mA DC12VBit Rate 64 320KbpsSignal to Noise Ratio 85db FM 65db Harmonic Distortion 0 05 FM 0 1 Operating Temperature 0℃ 60℃Features 1 Advanced Bluetooth 5 1 Technology Experience seamless and high quality audio transmission with the latest Bluetooth 5 1 technology Enhances connectivity reduces lag and enriches your auditory experience whether you re taking calls or streaming music 2 PD30W Fast Charging Power up your devices at lightning speed with 30W PD fast charging Compatible with a wide range of devices including for iPhone latest series achieving 60 battery capacity in just 30 minutes Say goodbye to waiting times 3 Multi Safety Protection Our car adapter offers multiple layers of protection for your peace of mind Features include over voltage protection short circuit protection over current protection and over temperature protection ensuring a safe charging experience each time 4 LED Display and Car Battery Monitor Keep track of essential metrics with a clear LED screen displaying frequency song serial number and operation status Additionally it monitors and displays your car s battery voltage alerting you instantly of any irregularitie