DJI WIRELESS MIC product details:

• All-In-One, Ready to Use. 250m (820 ft.) …
• Magnetic Attachment. OLED Touchscreen. …
• High-Quality Audio. DJI Mic allows you to record high-fidelity, professional audio by accurately reproducing tone across a wider frequency range. …
• 250m Transmission Range. …
• Ultra-Long Battery Life.