You get one Adaptor with listing,

This 3.5mm MONO Male Jack Plug to BNC Female Socket CCTV Camera Audio Cable Adapter is a useful addition to any surveillance set-up. Designed for Audio & CCTV accessories, this unit features connectivity through BNC. The adapter CONNECTS A 3.5mm to BNC and is perfect for connecting audio devices to test equipment & BNC cables.

nickel plated is made to last. Suitable for use in home surveillance, this item is an essential accessory for any CCTV set-up.

Sent Royal Mail post, Global customers can purchase via Ebay Global shipping program.

Please note I do not accept returns so make sure this item is what you want prior to purchase.

Location tote 5