C4 Bluetooth MP3 Hands-free Car Device LCD FM Transmitter Dual USB Charger, C4

1.Rated operating voltage: DC12V-24V
2.Operating voltage limits: 9-26V
3.USB 1: 5V / A output
4.USB 2 output: 5V / 1.0A, Read USB Flash music.
5.Operating temperature: 0-50
6.Support playback format: MP3
7.BT version: Version 5.0 + EDR
8.Bluetooth sound processing: A2DP (Advanced Audio Distribution Profile)
9.Bluetooth transmission distance: 10M Bluetooth microphone effective range: 0.5-2M
10.FM transmission frequency: 87.5-108Mhz