The Rode HJA-4 is a pack of four high-quality 3.5mm to -inch (6.35mm) headphone adaptors, designed to let you plug standard consumer headphones into equipment with larger -inch headphone sockets like the RODECaster Pro and the Rode AI-1. Pack of 4 high-quality 3.5mm to -inch (6.35mm) adaptors Converts standard 3.5mm headphone plugs for use with -inch headphone jacks Ideal for connecting everyday headphones to the RODECaster Pro or AI-1 Compact size: 45mm x 10mm x 10mm per adaptor Durable, high-quality build for reliable everyday use A simple but essential accessory for any podcast or recording setup keep a few of these on hand so you're never caught without the right headphone connection.