TENGOO Batteries Heated Shoe Insoles Feet Warm Sock Pad Mat Electrically Heating Insoles Washable Warm Thermal Insoles Unisex

Specifications:Upper Material: EVARated Voltage: 3.7V/2000mAhWorking Time: 4HoursBattery Capacity: 2000mAh(Built in Battery)Color: BlackSeason: Spring, Summer, Autumn, WinterSuitable Size: 40-46 Features:-Full foot heating design: Using flexible heating film, the heating area covers most of the insole, providing sufficient warmth and – Powerful heating capacity: our products can maintain a temperature of 50 degrees Celsius in different environments to keep your feet warm-Safe input voltage: The lithium battery provides 3.7V voltage which is safe voltage for human body, warm but safe.-Easy maintenance: after removing the power supply and connector, it can be submerged -Comfortable wearing: we provide two ankle braces to protect your ankle, while it can store the lithium battery, so you can wear without foreign body sensation.Package includes: 1 Pair of Shoe Insoles(Battery not included) 1 x Charging CableNotes:1. Due to different monitors and light effects, the actual color of the item may be slightly different from the color shown on the pictures.2. Please forgive slight measurement deviation due to manual measurement.