Hopefully this batch would be more reliable. Last batch 1 out of 4 was defective.

Reply by our customer service

Dear customer ,thanks for your kind reviews .Any quality issue ,could you contact our customer service for help ?You could reach them by calling 1-866-979-7463 or sending online live chat (from Monday to Friday )or sending an email inquiry to us (any time ). We are more than happy to help you here .Best regards

Have been ordering this product for the 4/pack for a long time. This time I only ordered the 2/pack. Have to pay attention if it all works. Last batch 1 of 4 wasn't working properly.

Reply by our customer service

Dear customer ,thanks for your kind reviews .Any quality issue ,could you contact our customer service for help ?You could reach them by calling 1-866-979-7463 or sending online live chat (from Monday to Friday )or sending an email inquiry to us (any time ). We are more than happy to help you here .Best regards

I have been ordering this product for a few times and they're alright most of the time but lately in the last order I ordered 4 and 1 out of 4 wasn't working properly.

Reply by our customer service

Dear customer ,thanks for your kind reviews .Any quality issue ,could you contact our customer service for help ?You could reach them by calling 1-866-979-7463 or sending online live chat (from Monday to Friday )or sending an email inquiry to us (any time ). We are more than happy to help you here .Best regards