MiVue Smartbox 3 The power cable is connected directly to the battery to provide continuous power to support Mivue™ parking mode after the engine is turned off. It prevents the car battery from being completely drained when the engine is turned off. Compatible with the following Mio dashcams: MiVue™ 731 MiVue™ 733 WIFI MiVue™ 751 MiVue™ 752 WIFI Dual MiVue™ 785 Touch MiVue™ 786 WIFI MiVue™ 788 CONNECT MiVue™ 792 WIFI Pro MiVue™ 795 MiVue™ 798 MiVue™ 798 Dual MiVue ™ 798 Dual Pro MiVue™ 798 Pro MiVue™ 812 MiVue™ 818 MiVue™ 821 MiVue™ 826 MiVue™ 846MiVue™ 866 MiVue™ 886 MiVue™ C380 Dual MiVue™ C440 MiVue™ C450 MiVue™ C540 MiVue™ C541 MiVue™ C560 MiVue MiVue™ J60 MiVue™ J85 application: Dashcam extension Camera: N / A resolution: N / A Wifi connection: N / A confirmation : N / A Shock sensor: N / A Guarantee : 2 years