The quality of the electrotherapy instrument is guaranteed?

The quality of Beyoncé medium frequency electrotherapy instrument is completely guaranteed, I used a little more than a year no problem, this is a very professional do electrotherapy instrument brand, has a history of twenty years, and now many hospitals are using their machines. Benefit from their home home medical level of intermediate frequency therapeutic instrument, full-featured, and hospital products at the same level, the State Food and Drug Administration sampling qualified products, strictly follow the national mandatory industry standards, intermediate frequency double isolation safer, medical machinery quasi-nominal products, a number of hospitals to cooperate with the number of prescriptions for some of the products up to 99 prescriptions, but also the effect of a significant after-sales warranty is very good, and their machines: Support 7 days no reason to return, the machine has a quality problem is 90 days for a new machine national warranty two years lifetime maintenance, within 2 years all costs are borne by them 2 years outside the warranty period send back to the postage or they bear, the quality of this service is quite good