Product information:
-Type: Electric Heating Socks
-Output: DC3.7V 2A
-Battery Capacity: 2200mAh x 2
-Battery Life: 500 Times of Charging
-Charging Time: 4-5hrs
-Working Time: 4.5-8hrs
-Heat Temperature: 45-65 degrees C
-1 Light: 45oC for 8hrs
-2 Lights: 66C for 6.5hrs
-3 Lights: 65C for 4.5hrs

Contents in Box:
-1 x Pairs of Socks
-2 x 2200 mAh Batteries
-1 x USB Cable
-1 x User Manual

More information about product:
-Premium Heated Socks: This heated sock adopts inner stitching process, fine workmanship, simple and fashionable appearance, ideal for keep feet warm in winter.
-Surround Heat Technology: Our electric heating socks use high-quality alloy heating elements, which are thinner than traditional carbon fiber heating wires and have more precise temperature control, no foreign body sensation when wearing! Embedded invisible heating wire surrounds the entire foot to ensure 360 degree uniform heating, which makes our heated socks unique.
-Heat Settings: One size heating socks fits 5-11 US-size. Wild style, keep warm and stylish. Long press three seconds to start, short press shift, electric heating three gear constant temperature 45-65 degrees, high-grade 65 degree endurance time 4.5h, mid-range 55 degree endurance time 6.5h, low-range 45 degree endurance time 8h plantar single heating.
-Ergonomic Upgraded Battery: Our electric Heated socks are equipped with a pair of 2600mAh rechargeable battery. Heating time up to 5-7 hours and full charge around 6 hours. Keep Warm All Day.
-Made of Selected Materials: Socks made with 22.5 percent viscose, 52.5 percent nylon 10 percent polyester 15 percent spandex. Socks fabric is soft, comfortable, breathable and elastic, and the inside is combed fluff, which can maintain the temperature inside the socks and provide you softness.
-Wide Application: Specially designed for winter outdoor sports, such as ice fishing, hunting, hiking, riding, motorcycling, snowboarding, running, camping, skiing, shoveling snow in Winter etc.