Button Wireless Lapel Microphone AI Noise Reduction With Hi-Fi Sound Quality Mobile Live Streaming Microphone Transmitter & Receiver: 1. Transmission mode: 2.4GHz digital band 2. Transmission distance: 300 m (line of sight) 3. Polarization mode: omnidirectional 4. RF output power: 85 dB 12. Audio input: built-in condenser microphone 13. Power supply: built-in lithium battery 14. Battery capacity: 130mAh 15. Battery life: about 6 hours 16. Charging time: about 1.5 hours 17. Operating temperature: 0 to 50 degree Celsius 18. Storage temperature: -20 to 50 degree Celsius 19. Weight: TX about 9g, RX about 16.5g 20. Size: TX about 26.1 x 10mm, RX about 44.2 x 20.79 x 22mm Charging Case: 1. Battery capacity: 1500mAh 2. Charging time: about 2 hours (5V 2A) 3. Charging port: Type-C 4. Charge cycles: more than 1.5 times (2 x transmitters) 5. Weight: about 108.5 g 6. Size: about 10.8 x 4.2 x 4.2cm Features: 1. AI deep learning noise reduction algorithm, powered by AI large models, intelligently identifies sample noise with one click, precisely separates it, delivering pure vocals 2. Hi-Fi-grade sound quality, immersive live experience 3. No manual adjustments needed—auto gain dynamically compensates for distance and ambient noise intensity, maintaining balanced volume to prevent muffled sound 4. Built-in limiter caps volume within safe ranges, eliminating distortion and clipping 5. Enable safe Track to record a backup at -12dB. Even if the main track overloads or is lost, clear, complete audio remains intact, avoiding re-recording 6. Transmitter features a smart, minimalist button design weighing just 9g for comfortable, unobtrusive wear. Top-mounted fine metal mesh protects against dust and particles 7. Receiver LED strip displays three colors for clear status indicators: device connection, noise reduction status, and volume level 8. Built-in EQ tuning allows customizable frequency response: boost mid-high frequencies for clear, bright vocals while reducing low frequencies to prevent muffled sound 9. 6-hour standalone battery life covers most recording sessions. Combined with the charging case, it delivers 30 hours of total runtime eliminating power anxiety during outdoor shoots. The receiver supports charging while in use, ensuring uninterrupted live streaming 10. 3.5mm jack enables real-time monitoring, allowing you to hear the microphone's recorded sound during recording for immediate detail adjustments Package Listing: - Charging case x 1 - Transmitters x 2 - Receiver x 1 - Type-C connector x 1 - 8-pin connector x 1 (not included with LINK3-02) - 3.5mm TRS to TRS audio cable x 1 - Magnetic pads x 2 - Magnetic back clips x 2 - Windscreen covers x 2 - Type-C to USB data cable x 1 - Carrying pouch x 1