This earpiece compatible with two pin Hytera radios including: Hytera Radios PD405, PD415, PD485, PD505 TC-610 TC-620 PD402i PD552 PD562i PD508. Compatible with Hytera 2 pin Radio with 3.5 mm pin. This rubber G Shape inline PTT earpiece is great for anyone who finds the earbuds on covert acoustic tube earpieces irritating to wear.
eBay