Start with your recording device, not the specs. If you shoot with a phone, you want a kit with a USB-C receiver that plugs straight in. If you record with a camera or a compact recorder, you want a receiver with a 3.5mm jack and, ideally, a headphone monitor output so you can hear what you are actually capturing.
Range and battery matter more than brand. Most interview setups stay within a few meters of the camera, so even the cheapest kits cover that. Where the expensive mics earn their money is reliability — backup recording on the transmitter itself so a dropout never costs you a take, and long battery life across a full shoot day.
32-bit float is the feature to look for at the top end. The DJI Mic 2 and the Rode Wireless PRO both record internally, which means even if your interview gets loud or the mic clips, the audio is still recoverable in post. Budget kits like the Hollyland Lark M2 skip that and simply sound very good for the price.



