Real-time Crystal Voice Syncs without any delay, High Density Spray-proof Sponge, High-sensitivity Microphone, 360° Omnidirectional Sound Reception, Fast Working, Radio Well Regardless of Surrounded Environment, Recording Every Details. The bluetooth microphone is suitable for broadcast video, recording, Youtube, Facebook live broadcast, Podcast, Vlog, Tik tok, Twitch, etc. The microphone for iphone is built-in Noise Reduction Chip, Strong Anti-interference Ability, Effectively Recognizes the Sound, and the lapel microphone can still Record Clearly in a Noisy Environment. High Performance Wireless Microphone, Signal stability. The lavalier microphone is built in 75MAH Rechargeable Batteries Up to 10 hours Operation Time. 20M/65FT Working Distance without obstacle.