The S-Pack 700 B is our most inexpensive sock battery with Bluetooth technology. Thin and compact, it fits perfectly with all Therm-ic heated socks.

-Fitted with Bluetooth technology, you can now control all 10 heat settings via your smartphone, using the Thermic Heat Control App.
-Includes 3 manually controllable heat settings via power button
– Keep your feet warm for up to 8 hours
– Includes a USB charger
– WALL CHARGER NOT SUPPLIED

*Socks Not Included