FBI Low Profile Split-Wire Deluxe Headset - Kenwood 2-Pin Connector Surveillance Headset for your Kenwood Business 2-Way Radio (2-pin connector) 2-Pin Connector for Use with Protalk TK-3400 / TK-3402 / TK-2400 / TK-2402 / TK-3230 Good for Noisy Situations Replaceable Bud