phone calls, stream music & enjoy FM The Device Transmits FM signals to connect to your Car Stereo FM Receiver. It also Receives Bluetooth Signals from your Smartphone. This way your phone is Wirelessly connected with your car stereo through this device. Built-in Microphone with Noise Cancellation to minimise cabin noise in phone calls Auto Switch to hands-free phone call mode from Music Mode on incoming call One-Touch Bass Increase button Comes with Dual USB outputs 5V/3.4A, to Charge Your smartphones, powerbanks, etc. You can play music from PenDrive on one USB port and from MicroSD Card Slot Enjoy All FM Channels too from 87.5-108MHz