Zeadio Covert Acoustic Tube Earpiece Headset Mic for 2 PIN Motorola Radio Fd-150a Fd-450a Fd-160a Fd-460a Blackbox-v Etc. Excellent for use in police, military, nightclubs, bars, paintball, security,restaurants, hotels, bouncer, warehouses, and noisy environments. Durable and thick cable, designed for tough environment This headset is for the Motorola radios and many more that require standard 2 Pin