Rated operating voltage: DC12V-24V Working Voltage limits: 9-26V USB1Output: 5V/2.1A USB2 Output: 5V/1.0A , read USB Flash music. Working Temp: 0-50 Support Play format: MP3 BT Version: Version 5.0 + EDR Bluetooth sound processing: A2DP(Advance Audio Distribution Profile) Bluetooth transmission distance: 10M Bluetooth microphone effective range: 0.5-2M FM transmission frequency: 87.5-108Mhz
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