1、1. Cordless heating: It is scientifically proven that it is more effective and safer than traditional heating way because it can penetrate into the skin without causing skin damage. The heated waist support has a pocket that can be used to place a power bank, which can be used anytime and anywhere without being restricted by the power cord. 2、2. Discomfort relief: immediate and lasting relief of herniated disc, sciatica, stiffness, back discomfort, muscle aches and other back discomforts. 3、3. Stretch and support your waist: the waist belt is fixed under the chest cavity (providing stable support) and gently lifts the torso while pushing the hip bones down during inflation. This movement gently stretches the torso vertically and transfers pressure away from the affected discs and nerves. 4、4. Convenient controller: There are 3 kinds of heating settings (low, medium, high) and 3 kinds of time (10 minutes, 20 minutes, 30 minutes) for you to choose from. When you need to heat up quickly, choose high heating. When you use it and want it to maintain a certain temperature, choose low heating and a 30-minute timing. 5、5. Safe and comfortable: The heating material is made of carbon fiber, which is safer, softer and healthier than the original heating method. With an extension pad, the waist belt can support up to 49 inches of waist circumference. Product name: Inflatable waist heating belt Material: TPU PU knitted fabric Heating temperature: red high-grade 65℃, blue medium-grade 55℃, green resists 45℃. Colour: Black Power supply: USB [please use a power supply with a minimum capacity of 10000 mA] Size: 116*15.5cm/45.66*6.10inch (approximately) Applicable waist circumference: 29-49 inches Weight: 600g 1*Belt