With this little help you have your Massoth Navigator always at hand.
Simply plug the plug into the charger sockets on the navigator, and insert a lanyard into the key ring
And just hang around the neck. They always know where their navigator is and can not fall down any more.
Just "click" and done.

The plug-in LEDs for 5V herald the next generation of front lighting. For the first time, a series-produced, retrofittable and easily pluggable warm white LED is available for headlights. The legally protected miniature circuit boards with specially specified LEDs are the perfect replacement for a light bulb with its round, warm white light spot. There is no visible difference. Power savings and the significantly longer service life make the LED the more cost-effective light source compared to conventional light bulbs.