This 1-wire surveillance kit with inline Push-to-Talk (PTT) and 2.5mm audio accessory port is a bone conduction earpiece that allows the user to hear (Rx) and transmit (Tx) through a single earpiece without the need to speak directly into a microphone. A great solution for noisy environments such as concerts, sporting events, nightclubs and festivals.

Features:
• Includes 2 Push-to-Talk (PTT) options: a remote finger PTT (FPTT-1) and an inline cable switch.
• Bone conduction earpiece for right or left ear use
• Coiled cable for greater flexibility
• 2.5mm Jack
• Three year manufacturer's warranty

Fits: NX-200, NX-210, NX-300, NX-3200, NX-410, NX-5200, NX-5300, NX-5400, NX3200, NX3300, TK-190/290/390, TK-2140/3140, TK-2180/3180/4180, TK-280/380/480, TK-3148, TK-3212, TK-385, TK-481, TK-5210, TK-5220, TK-5310/5410, TK-5320/5420, TK-5400, TK-5410, NX-210G