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.

• Bluetooth function
• Warm feet for up to 16 hours
• Pack comes with a USB charger
• Wall charger not suppliedS-Pack batteries are suitable for use with the Therm-ic PowerSocks heated socks
• S-Pack batteries are suitable for use with the Therm-ic PowerSocks heated socks