Trio mixer grinder houses 3 stainless steel jars. These jars are made using high quality stainless steel and high precision for best performance. They also go through water load test to ensure stability and endurance test for blade ( 10 hours ). This Powerful 500W motor gives efficient mixing and grinding to your ingredients and saves your expenditure on electricity simultaneously. In case of any overload, the motor has tripped and the user needs to reset the overload protector which is located at the bottom of the product. Do not worry if you experience some burning smell when you run your mixer grinder for the 1st time .This is due to the motor varnish getting heated for the 1st time. The problem should not recur in subsequent uses. If it does, please contact Brand Service Centre; Since your mixer grinder runs on a powerful motor, there will be some noise. Product Operating Noise Level : 80 Db(Mixer Grinder industry wide acceptable levels: 80-90 DB) human voice as a reference(50-60 db). If noise level seems to be higher than this, please contact Brand Service Centre. No load speed 18000 (approx.) With load speed 10500 (approx.)