high quality Professional Noise Cancelling: Easily create on-the-go content with 's noise-cancelling technology. Record confidently with a DSP chip and a windscreen100 ft Transmission: State-of-the-art 2.4G provides a stable connection, so you can record ultra-wide shots with 100 ft of wireless transmission and super-low latency for less lip-syncing in post18-Hour Battery Life: The wireless microphone transmitter has a built-in 110 mAh rechargeable battery and a low-power chip. When you're putting in overtime on a shoot, the wireless lavalier microphone keeps up with 9 hours on a single charge or 18 hrs with 2 mics in totalLightning Compatibility: The wireless lavalier microphone's Lightning receiver is perfectly suited for use with iPhone and iPad devices equipped with a Lightning portReliable Customer Care: offers dependable service and tech support. For help, reach out to us via Amazon messaging or the service information provided in the manual. There is a nice box for storage and carryingReverb/Mute Function: The reverb function provides 3D sound and an immersive feeling. The mute function allows for temporary mute during team communication, device setup, and other unexpected situations without shutting down the system