S-Pack 1400 B Powersock Single Battery

The S-Pack 1400 Bluetooth battery is the most efficient in the range. With Bluetooth technology, you can adjust the heat settings remotely using your smartphone.Specifications:-Bluetooth function-Warm feet for up to 16 hours-Pack comes with a USB charger-Wall charger not supplied-S-Pack batteries are suitable for use with the Therm-ic PowerSocks heated socks