Triple Helicopter/Military Headset Adapter 260-8 CAL The TS835 Charging Adapter is

The TS835 Charging Adapter is designed to allow the TT28-12 Charger Pro to be used with True BluePower TS835 Series Emergency Power Supply batteries

It provides thermal stability and remains stable from -50°C to 200°C while offering excellent dielectric properties

and dual ground

Using built-in wifi

but what does it mean

Triple Helicopter/Military Headset Adapter 260-8 CAL The TS835 Charging Adapter isThis Headset Adapter (EDMO# PA 90H) is great for adding a pair of helicopter military headsets to the back of the aircraft without requiring major installation. It converts one radio or intercom Helicopter Military jack into three sets.