Stopped working after 6 months

Stopped working after 6 months

SainSonic Rainbow Series 3D Active Glasses for Mitsubishi / Samsung / Acer / BenQ / Optoma / Dell / Vivitek / NEC / Sharp / ViewSonic DLP-Link 3D Ready DLP HDTV USB Black (Personal Computers)
Buy at Amazon.com

Customer Review

I bought 2 pairs of glasses Sainsonic.
They have worked well the first month. Then I have not used for a few months time to acquire other Blu-ray 3D.
Then more way to make a charging via the USB cable, you have to leave the cable on the glasses while viewing, causing obvious discomfort and pain in the nose.
Regarding the SAV (well hidden in the product, check!), When you leave a message on the site in German, there is no answer.
Amazon kindly take them back and pay me, I enjoyed this goodwill gesture.
I should point out that the problem occurred on two pairs of glasses, there is likely a design problem and the manufacturer seems to hide behind a non-existent service.

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