1. ATOP's products all passed rigorous testing of high-temperature dynamic aging and passed ISO9001 , CE and FCC certification.

2. All life guarantee, and three years free replacement.
All life warranty.Toll-free repair period is three years(counted from the date when the invoice is issued .)

3. 24h Hotline consultation
ATOP provides 24h hotline service a day, our hotline number is +86-755-83461686-800. Our service staff will provide prompt service support for you.

4. Conditions for toll-free repair exempted
Please choose toll maintenance service under the following condition:
Toll-free service period expired ;
Malfunction and damage caused by incorrect installation, storage and use implemented by users.
Malfunction and damage caused by incorrect installation, maintenance and alternation implemented by unauthorized organization and personnel.
Malfunction and damage caused by accident or man-made matter(including computer virus, operation failure, falling, extrusion, submersion, dampness, unmeet voltage input,etc. )
Failure or damage caused by natural disaster(earthquake, fire, thunder, fire,etc.) force majeure.
Malfunction and damage caused by quality problem of other products and parts.