4.1 inch screen GPS navigation system. Besides, our GPS navigation system can connects with your smartphone via . You can also play games, watch videos and listen to radio. The car goes into reverse and automatically switches the reverse image. Feature - Color: black - Marterial: Plastic and metal - Size: 18.2 x 5.8 x 8.5cm - 4.1 full touch dual USBMP5 player with thermometer function rear view function. - Power off memory in any state - Built-in radio FM tuner, automatic search save station function - Made of premium material and with smart design, it is durable and practical. - EQ sound control, stereo, left channel, right channel selection - Our multifunctional equipment will surely meet your daily needs. Specification voltage :DC12V Speaker Impedance4ohm Maximum power : 50Wx4 Volume control:-+/-8 dB Tuning range : 87.5 mdash;108MHz IF-FRE : 10.7MHz Applicable sensitivity : 15dB SNR : 50dB Stereo Crosstalk : 30db