HJA-4  3.5mm to ¼ inch headphone adapters The HJA-4 is a set of four high quality 3.5mm headphone conversion adapters (used in most consumer devices) for use with devices with larger 1/4 ”headphone jacks. They are especially suitable for connecting headphones to the RØDECaster Pro and AI-1.

HJA-4 SPECIFICATION MECHANICAL SPECIFICATION Dimensions (mm) 45mm W x 10mm H x 10mm D (each)