about this item:

Plug and Play, NO APP or BLUETOOTH is needed: Easy to use, switch on and plug in the receiver to connect automatically Lavalier Microphone is different from others. Ours includes transmitter and receiver; they will automatically connect, so APP or Bluetooth are not required. Can be Equipped with an iPhone to any adapters: Compatible with iPhone/ iPad smartphones, tablet with iPhone port. The microphone can be used directly when you play Youtub, TikTok, WhatsApp or Facebook. Real-time Clear Voice Auto-Sync Technology: Built-in Omnidirectional Condenser Microphone, it Captures Sound in Every Direction. Using real-time auto-sync technology, which extremely reduce the video post-editing. Noise Reduction: Omnidirectional microphone for iPhone, clear recording in noisy environment. Built-in high-sensitivity sound captures accessories and maximum support 20 khz high-frequency. For the Noise Reduction, maybe you couldn't expect more.