Fit to the device models:Sennheiser IS 410, IS410, IS-410, IS410 TV, IS4200, IS-4200, RI 410, RI410, RI-410, RR 4200, RR4200, RS 4200, RS 4200 TV-2, RS4200, RS-4200, Set 830, Set 840, Set 900. Compatible with the battery part numbers:500898, HC-BA300, NCI-PLS100H.
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