GXT Series: GXT250, GXT325, GXT310, GXT400, GXT450, GXT550, GXT565, GXT600, GXT650;. LXT Series: LXT80, LXT110, LXT112 ,LXT114, LXT210, LXT216, LXT303, LXT350, LXT410, LXT420, LXT435;. Earplug can be rotated, which makes left and right ear suitable to wear.
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