4-in-1 Wireless Lavalier Microphone System with Noise Reduction, UHF Transmission for iPhone Android 1. Equipped with one receiver and four microphones, this wireless all-in-one lavalier microphone reduces complex setup, making professional multi-person recording easy. 2. The smart display provides real-time visual monitoring of the connection, battery level, and recording volume of all four microphones; easily adjust gain and activate the low-cut filter for pristine sound. 3. Adapts to any noise environment, manually switching between light noise reduction for indoor low hum and heavy noise reduction for noisy outdoor environments; ensuring your voice is clear and intelligible everywhere. 4. Audio safety net for critical recordings: the safety track mode simultaneously records a backup channel at a lower volume, providing peace of mind for weddings and interviews. 5. Features a magnetic clip-on dual mounting system, suitable for any clothing, easily attaching to lapels and ties. 6. Compatible with smartphones, tablets, and other supported devices; stable wireless transmission with low latency and wide transmission range for both indoor and outdoor use.