- Bosch GHV12V-20 Heated Vest Kit - Modern design - Rugged outer shell - Wind- and water-resistant - Three heating zones - Two chest zones - One lower back zone - Thorough and efficient heating - GAA12V-21 12V Max Portable Power Adapter - Can be used with Bosch 12V Max battery - Delivers 2.1 Amps - Can power up personal devices - Compatible with Bosch 18V batteries - GAA18V-24 18V Portable Power Adapter (sold separately) - Longer runtime (with Bosch 18V batteries)