GEPRC Tern -LR40 O4 Pro Upgrade Kit Summary Tern-LR40 O4 Pro upgrade kit adapts the Tern LR-40 for the DJI O4 Air Unit Pro. It fits perfectly, keeps the original design elements, and stays true to the classic style. Still made from aerospace-grade 7075 aluminum, it’s light yet strong.GEPRC team offers a precision upgrade for the Tern-LR40, fully tuned for the DJI O4 Air Unit Pro, bringing next-gen video transmission performance to a proven model. Features 1. 7075 Aerospace-Grade Aluminum, lightweight with uncompromised rigidity. 2. Fully compatible with DJI O4 Air Unit Pro VTX. Includes 1 × Tern-LR40 frame kit O4 Pro aluminum parts set1 × Tern-LR40 frame kit O4 Pro anti-shake mount (left & right)1 × Tern-LR40 frame kit O4 Pro VTX antenna mount8 × M2*4*22 knurled aluminum standoffs6 × M2*6.5 round head screws with washer6 × M2*7 round head screws