FM Transmitter Charger Car Mp3 Player with Single Earphone Handsfree Modulator Dual USB Ports Car Voice Broadcast PlayerOOTDTY  Features: brand new and high qualityCompatible with all smartphone devices and vehicles with car power outlets.Enjoy in-car stereo streaming and charge smart phones at the same time.Made of high quality ABS for durability and smartly designed into compact size.Bluetooth-compatible provides a stable connection and echo-cancellation can reduce background noises for better hands-free calls, so you can answer phone calls with a press of the button.The power delivery technology provides a fast charger to USB devices ,for most mobile phone charging needs.Comes with 1 Car MP3 Player ,Single Earphone.Specifications: Material:ABSBluetooth-Compatible Version: V5.0+EDRTransmission Distance: 5-10M/16.4-32.8FeetWorking Voltage: 12V-24VDual USB Output: 5V 3.1A/5V 1ASupport Music Format: MP3/WMA/WAV/FLACFM Transmitting Frequency: 87.5-108.0MHZWorking Temperature: 0-55℃Support: U/TF CardPackage Includes: 1x Car MP3 Player1x Earphone(Single)1x Manualnote: Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!