【Safe & Fast Heating】We use graphene inside the hand heating pad, which heats up quickly and is absolutely safe. You can long press the three-second on key to heat it, and press the three-second on button again to turn it off., 【3 Heating Levels】Black wrist heating Pad is designed with three adjustable temperature of 122℉/ 140℉ / 158 ℉,settings to provide comforting warmth, effectively relieving joint pain, and hand fatigue. Each press of the button changes the temperature, maintaining its original heating temperature., 【Comfort Material】The surface of heating wrist brace wrap is covered with breathable chinlon and spandex, the middle layer is selected Neoprene material,soft,skin-friendly,comfortable. Easy to carry and can be used anywhere, whether at the office, on the go, or at home., 【Heated Wrist Brace】Wrist heating pads effectively relieves arthritis, carpal tunnel syndrome, basal thumb arthritis, a ganglion cyst or simply just a wrist sprain or strain.Carpal tunnel wrist brace incorporates USB rechargeable technology for enduring and convenient care., 【USB Charging】The hand Heating Pad is powered by USB interface devices (such as sockets, computers, and power banks) to ensure constant power supply.Wrist support to relieve pain, relax muscles, long-lasting comfort.