Equip your business with our outstanding safety suppliesﾡﾪprotect every worker today! What Is It? The 2 wire surveillance mic has the acoustic tube ear piece on one wire and the mic with Push To Talk (PTT) button on a separate wire. The two wire arrangement enables the mic and PTT button to be more conveniently located. The acoustic tube ear piece has replaceable tips in several styles.? Works with the following Radio Models:? Hytera TC 610, TC 500, TC 508, TC 580, TC 700 Hytera DMR PD402i, PD412i, PD482i, PD502i, PD562i Motorola CP200 Why You Need This: The 2 wire surveillance mic enables clear easily understood audio even in noisy environments and keeps your communications private, by not allowing bystanders to listen in. Recommended Options: Open Ear Insert?- fits just inside your ear allowing ambient noise to filter thru; choose Left or Right ear when ordering. Hearing Protection Foam Ear Tips?- with 29dB noise reduction, one for the acoustic tube and one for your other ear. Replacement Tip – have you looked at your existing ear tip lately? Maybe it’s time for a new one