Car Handsfree Wireless Bluetooth FM Transmitter MP3 Car Charger Dual Charger Equipped Bluetooth LED Player Display Dual USB Car Charger Description: Support Bluetooth/U disk: Plug and play U disk, adjust the car radio frequency and Bluetooth MP3 frequency to be compatible with playback songs from U disk. Universal for Android/IOS: unlimited mobile phones and models, applicable to popular 12V-24V models on the market, compatible with a large number of applications Intelligent fast charging: 3.1A dual USB intelligent fast charging, two USB ports can be charged at the same time, up to 3.1A, phones and tablets can be charged at the same time. Safe and Stable/Intelligent Bluetooth 5.0: The new generation of chips responds quickly, constant temperature and constant charging current, no harm, making charging safer Memory function: Power off memory playback function, automatic reconnection after power on, memory frequency, restart after turn off the song and start playing from the first sentence of the disconnected song Specification: Operating voltage: 12V-24V Input current: 3.1A Display screen: blue digital display Transmission efficiency: 87.5-108Mhz Effective distance: about 10.5 meters Bluetooth version: Bluetooth 5.0 Support extension: Ule disk; 32G Launch distance: 5 meters Material: ABS FM frequency modulation function: yes Size: 36 x 47 x 79 mm 1.42 x 1.85 x 3.11 inch Package includes: 1 x car charger