3.7v Powersheer™ Micro Sock Batteries and Cable 2 Pack handwarmer The Proton Heated Baselayer Shirt

The Proton Heated Baselayer Shirt features a midweight printed knit design with a soft lining

4V power output

this high-output Li-Ion battery delivers double the heat duration compared to standard models—perfect for long workdays

low-profile

and built to layer

3.7v Powersheer™ Micro Sock Batteries and Cable 2 Pack handwarmer The Proton Heated Baselayer ShirtDesigned specifically for Fieldsheers Premium 3. 0 Merino Men's and Women's heated socks, and the older version Premium 2. 0, the Powersheer Micro BT Battery delivers reliable warmth in a compact, calf contoured form. With built in Bluetooth wireless control you can adjust temperature and monitor battery level right from your phone or smart watch, Apple and Android compatible. Download the MW Connect App and you're ready to go.