The iMounTEK Car Wireless FM Transmitter is the perfect solution for enjoying your favorite music and making hands-free calls while on the road. With its versatile music playback options, including FM signal, TF card, USB flash disk, and aux-in, you'll have access to all your favorite tunes. The built-in high-sensitive microphone with CVC noise cancellation ensures crystal-clear calls, while the USB fast charge port keeps your devices powered up. Plus, the adjustable neck and memory function provide optimal viewing angles and auto-connect convenience. The 1.37" screen displays all the essential information, including call info, battery voltage, volume, FM frequency, and song names, with a backlight for easy reading day or night.What's in the Box? iMounTEK Car Wireless FM Transmitter 3.5mm Audio CableSpecifications: Brand: iMounTek Product Type: Car Wireless FM Transmitter Wireless Version: V3.0+EDR Compatible Models: Wireless-Enabled Devices like  iPhone 8, iPhone 8 plus, iPhone X, Samsung, HTC, LG, Blackberry, Sony, Tablet and iPad Frequency: 20h-20KHZ Sensitivity: -42db+/3db 360 Output: 5V/2.1A Working Current: 45mA (max) Standby Current: 25 mA (max) Effective Wireless Range: 5 meters Effective Mic Range: 2 meters RF Output: 4dBm FM Frequency: 87.5MHz - 108.0MHZ Transmitted Power: 87 dBuv/107 dBuv Color: Black Size: 3.15” × 1.97” × 3.94” (L×W×H) Weight: 50g/1.8oz Limited Quantity Available 90 Day Warranty