The contents herein may be changed to deliver the better services to the customers and this company will not otherwise notify you of any changes to the performances and functions of product!. To keep the sound performances of product, never use it in the too cold, too hot, dusty or moist places, especially in the following conditions: 1. Moist or underwater conditions. 2. Conditions near the heater or high-temperature service. 3. Conditions with direct sunshine. 4. Conditions with apt falling. 5