THERM-IC S-Pack 700B For Heated Socks Batteries (S-PACK-700-B)

Pack of two S-Pack 700B batteries; Controllable via Bluetooth on your smartphone; Heating time level 1: up to 8 hours; Heating time level 2: up to 5 hours; Heating time level 3: up to 2 hours; S-Pack batteries are compatible with Therm-ic Powersocks; Pack includes a USB charger to charge both batteries simultaneously