A Great Help Center.

  • HL-22: Can I use anywhere on my body?

    Yes, if you feel cold or sour,  anywhere you want . 

  • HL-22:Does the device direct contact with the skin ?

    Yes, it is designed with medical grade silicone case.

  • HL-22: Will it burn the skin?

    Of course not , it uses a microprocessor to monitor the temperature change in real time, which can maintain a constant temperature, no need to worry about burns caused by excessive temperature.

  • HL-22: How to clean it if gets dirty?

    It is waterproof , can be washed by water if necessary. 

  • HL-22: How long can be used if connect to 5000mAh power bank when it is fully charged.

    It can be used continuously for at least 10 hours