Product information:
-Rated Working Voltage: 12V
-Limit Working Voltage: 9 to 26V
-USB Output: 5V 2A
-Working Temperature: 0 to 50 degrees C
-Play format: MP3 EMA
-SNR: Greater than 60dB
-Degree of Distortion: Less than 0.1 percent
-Bluetooth Version: Version 2.0
-FM frequency: 87.5 to 108Mhz
-Bluetooth Transmission Distance: 10M to 15M
-Bluetooth Sound Processing: A2DP Advance Audio Distribution Profile Function Supported
-Effective Distance of Bluetooth Microphone: 0.5 to 2M
-FM Mode: Stereo Digital PLL Frequency Locking

Contents in Box:
-1 x Hands-free Car Charger
-1 x Operating Manual
-1 x Audio Cable

More information about product:
-Adjustable to any angles, and fit to all types of Vehicles.
-Full Frequency FM Transmitter
-Digital Display
-Support Line Audio Output
-With power off switch USB direct connect.
-Supports U Disk Player, Supports MP3 format music.
-Bluetooth answer, hang up, reject, redial calls and other functions.
-Bluetooth Stereo Music Play
-Echo cancellation and noise suppression CVC technology during a call.
-Automatic power-off memory function.
-Support dual USB output voltage, the maximum output 5V 2A.