Rhundo RS-21S 3-Way Car 12V Splitter/Charger + 2 USB Ports + Remote Switch

The Rhundo RS-21S is a 3-way car cigarette port splitter, allowing charging and/or operation of multiple electronic items at the same time.  It also has 2 USB ports which can supply 2.4A each (3.4A total).  The RS-21S has a wired remote touch sensor switch, which allows the user to turn the 3 12V ports on and off individually plus an on/off switch for the USB ports.  There is a master switch on the side of the remote that powers the whole unit on/off.   Dash camera users whose vehicles have cigarette ports that are always live will find RS-21S of particular interest.  There is an auto-off feature that allows the user to set a timer, between 1-120 minutes, which will automatically shut off any devices connected to the RS-21S after the engine has been turned off.  The RS-21S does this by monitoring the voltage at the 12V port during which the vehicle is running (usually around 14+ volts) and when the engine is off (usually around 12 volts).  When it senses the change in voltage, the time