- Within 365 days of purchase, if the device has quality problem we will provide repair services free of charge;
- The proof of purchase is requested for warranty services.
- Electrode pad(s) which are consumables；
- Warranty period expired;
- No proof of purchase;
- Defects due to：
- disassembly and modification;
- purposely damagesto the device;
- abuse of the device;
- not following the instructions in the manual;
- using non-original parts.