Consolidated for customers the best FM Transmitter on the market the Ceuta Retails won the market for its superior quality and reliability. Is the only store to purchase allowed and authentic Ceuta Retails T10.Compatible with most devices on the market. Play your favorite songs on your car stereo through Bluetooth, TF Card, Aux Cable. Advanced noise reduction technology will ensure quality, crystal simple sound.44-inch screen to better visualize phone calls, music, car battery voltage. The ideal screen size to assist you in driving safely without disturbance.TECHNOLOGY IN YOUR CAR: 1) Bluetooth connection; 2) Answer phone calls with the press of a button; 3) Voltmeter function to monitor the quality of your car battery; 4) 3 different ways to play music in your car, and more.SAFETY FUNCTIONS: Safety first. T10 I equipped with a voltmeter to show you the condition of your car battery. Voltage should be between 13. 2V to 14. 7V when your car is on and moving. 12. 2V to 12. 8V when your car is parked and ignition is off.