The Devia FM Smart transmitter is a device that will be useful for any driver who does not have a USB or AUX port equipped. With a transmitter in your car, you don't have to worry about a blank phone, tablet, or other portable device. You can charge them quickly and efficiently thanks to the USB ports. With this product, you can also play music from your phone and even from a USB stick. Answer and reject calls, reconnect to the last number, change frequency, manage songs and adjust the volume - all with one transmitter. Features: - Four different gadgets in one - 2 USB ports for charging/flash drives - TF card/microSD slot - up to 32GB - Digital voltage and current display< br><br>- Fast charging of up to two devices - HD microphone and call answer - Lightweight and very compact design Specifications: - Input voltage: DC 12V-24V - Maximum output power: 3.4A - Bluetooth version: v5.0 - Maximum Bluetooth range: 10m - FM frequency: 87.5-108.0MHZ - Maximum FM range: 3-5 meters - Ports: 2 x USB, 1 x TF/microSD - Audio format: MP3/WMA/WAV/FLAC