F22 Dual USB Car Charger Smart Bluetooth Calling Car Audio Device 7-Colors LED Car MP3 Player 1.Colorful Breathing Atmosphere Light: 7 LED Backlight & Deep BASS Music, add more excitement impact, and fun to your driving experience 2.New Upgrade Wireless V5.3: Adopt the newly upgraded Wireless 5.3 chip, with a DSP anti-interference chip, reject the ultimate effect of the stuttering experience 3.Clear Hands-free Phone Calling: It is a built-in Mic with high-quality sound technology that offers you clear talking. With just one click when receiving a call, the Wireless FM transmitter will provide you with a hands-free function and a safer driving experience 4.Voice Navigation: Open the App to get the information of destination on your cell phone, and broadcast your car navigation more clearly and simply, making you drive safer 5.Automatic Power-Off Memory Function: When you start it the next time, it remembers the last connected device and continues to play where the audio was cut off Specifications: 1.Music format: MP3WAV 2.Bluetooth version: 5.3 3.Cigarette lighter: DC12V-24V power supply 4.Features: U disk, Wireless 5.Frequency range: 87.5-108.0MHz 6.Power Supply: DC5V 7.Output Current: 3.1A 8.Playback Method: FM Modulation 9.Product Size: 3.8 x 5 x 7.9cm 10.Display: Frequency LED display 11.Product Material: ABS 12.Bluetooth distance:About 10