HealthMate Cordless USB Powered Heated Back Wrap, Support in Relieving Pain, 3 Heating Options, Auto-Shut Off, Battery Pack not Included, Products by Wagan;

Why Heating Wraps Work For Your?
Research has shown that applying heat to affected areas dilates the blood vessels which increases oxygen content, blood flow (circulation), and aids in reducing pain while helping to stretch soft tissues and relax muscles. Additionally, heat has a therapeutic effect on the mind which creates a comforting euphoric sensation (coziness)...

Wireless Heat Therapy To Go!
Connect with your personal power bank, insert the power bank into the pocket on the wrap, and press the illuminated temperature control button to setup your desired heating temperature. Then, you can wear the Back Heating Wrap to go, no more limitation from wires at all!

Features:
Wrap Fitment: 26" to 45" Waists
Two Cinching Strap to Customize fit
Precise Heat in Treatment Area
Automatic Shutoff after 2 houts of continuous use
Can be powered by rechargeable power bank, AC wall adapter or computer USB (USB extention cabel included)
Mesh pouch for Cold Therapy Pack (Cold Pack not included)
3 Heat Settings (approx temperatures):
○ Low: 95°F / 35°C
○ Medium: 118°F / 48°C
○ High: 140°F / 60°C

Included:
Back Heating Wrap
USB Extension Cabel
Instruction Manual