Third, check if any infrard light up ( Or if the screen is displaying ) when press the button and provide the Detailed problem to us ,such as: the model number of your device (old remote ) or take a photo of your old remote to us.
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HCDZ Replacement Remote Control for Optoma W415E EH415E-M EH502 EH504
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Compatible Models: H181x, DS331, EH415E, EH415ST, EH416, EH504.
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Compatible with: H111 H181x S310 S311 S313 W311 W313. Display red LED Indicator. Superior Quality Remote. All RM Series remotes are assembled and tested in the UK.
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