bought Epson 300Bt glasses for 1,100.00 cdn ,  right after the warranty went off the glasses malfunctioned,  if i d0  wish to repair them this is what i have to do, the part that i have to replace is the cable that attaches to the glasses,  and that my friends is the cost of the glasses themselves,  Epson also has discontinued that brand of glasses,, this is the worst investment i ever made,  so beware people keep away from Epson"s products.  thank you for allowing me to rant .

Hello there Picanoc Jack. I am sorry for the trouble these has caused and thank you for sharing these information with us. I hope that our fellow DJI co pilots who uses the same brand of glasses can give out the best recommendation and information with regards to this matter. Thank you.

Thank you,  I have lost all respect for Epson.