Yes, the DJI Mic 2 is compatible with the Insta360 X5.
Insta360 X5's own spec page explicitly names DJI Mic 2 in its list of supported Bluetooth devices, with dual-track audio recording supported -- a real named compatibility, not an inference.
“Other Bluetooth Devices: DJI: Mic Mini, Mic 2 Apple: AirPods Pro 2, AirPods 2 Huawei: FreeBuds Pro 2 Samsung: Galaxy Buds2 One Plus: Buds Ace Dual-track audio supported on all devices.”
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