It can be connected to a power bank.It can be washed with water but cannot be heated in water.Three-level temperature control: H high-grade 45/M medium-grade 40/L low-grade 30, timing: 6/12/18 hours.High frequency ultrasonic sealing and edge sealing, more durable.The built-in power supply prevents leakage.Up to seven layers of security design.Warm reminder:The above test uses a 2A power plug, and the room temperature is 27. The thermal efficiency of the heating pad will change with the change of the room temperatureUsing 1A plugs (such as Apple charging plugs) will directly reduce the temperature.Use 1A charging plug thermostatic heating pad temperature is about 40, switch heating pad about 30-40.Note1. Not machine washable.2. Ironing is not allowed.3. Do not wring out.4. Can not be heated and washed.5. The choice of USB power head is very important, and the output power is 2A.6. After using compatible with a period of time or pet scratching, burrs may appear, which is a normal phenomenon of the material, not a quality problem.Colour: blackMaterial: synthetic fiberSize: S: 20x10cmPackage Contents:1 * Pet Heating MatOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm."