When your outdoor adventures take you into freezing conditions, slide the ActionHeat Rechargeable Heated Insoles with Remote into your boots or shoes, and they'll keep your feet toasty and warm for many hours. Ultra-fine heating panels, strategically built into the front foot area, delivers long-lasting warmth. On High (III), the rechargeable battery cranks out 140F of foot-pleasing comfort for up to 3 hours. On Medium (II), you'll enjoy 120F for over 5 hours, and on Low (I), you can have 100F of warmth for over 8 hours. Keep the 3-setting wireless remote in your pocket and take control of your foot warmth all winter long. These ActionHeat insoles feature a deodorized, fleece-lined soft shell for comfort, and, thanks to their cut-to-fit design, they fit into all kinds of footwear. 3.7V rechargeable battery system. Includes: insoles, remote, and a dual micro-USB charger with wall adapter. Imported. Keep your feet toasty and warm for many hours Ultra-fine heating panels built into the front foot area High (III) cranks out 140F for up to 3 hours Medium (II) delivers 120F for over 5 hours Low (I) maintains 100F for over 8 hours 3-setting wireless remote fits in your pocket Deodorized, fleece-lined soft shell Includes dual micro-USB charger