Impeccable 121 312 3456

I bought glasses sainsonic 904 series, it was a disaster with my video projector Benq w1070, stall, reversing G / D all the time! With these glasses LCS, it's perfect! No stall, very light glasses, frankly it's a great product !!! A buy eyes closed! Furthermore the seller is also of the highest quality! Let me explain:
Order a pack of 3 glasses on Sunday evening, the seller called me on Monday morning to confirm that it does well from the glasses that day and that I would receive them within 48 hours instead of the planned four days, it also wonder confirmation of my material for compatibility, so frankly it's too rare and it deserved to be reported as customer service!