Water Heated Mattress Pad—— New Experience of Healthy Sleep- Characteristic：Multiple Protection-Protect Your Warm SleepWater shortage warning: stop running and remind when water shortageAntifreeze protection: prevent freezing of water tank and water pipeOverload circuit protection: automatic power off if the current is too largeHigh temperature protection: automatic power off at high temperaturePower board suspension design: water and electricity separation to prevent leakage12 hours automatic shutdown- Main Parameter:Host Power: 280WHost voltage: 220VHost Noise: ≤20dBTemperature Range: 10℃（50℉）-65℃（149℉）Water Storage Volume: 800MLHost size: 19* 19* 17cm- Package Content:Constant Temperature Host ×1Mattress Pad ×1User Manual ×1Remote Control ×1- How to Use1. Remove the two nuts at the back of the host, Connect the silicone hose to the machine and blanket.2. Turn on the power supply, inject clear water (about 500ml), wait for the water to enter the pad, the alarm will sound again, and then inject clear water again until the water level does not drop again. (if there is water shortage, it will give a prompt sound. In order to prevent minerals or accumulation from blocking the pipeline, it is recommended to use purified water)3. Note: because the blanket is folded, it may be necessary to exhaust the air with the help of an exhaust funnel.