【Ultra-Lightweight Design】Weighing only 5 grams, this BOYA wireless microphone transmitter is designed for all-day comfort, perfect for vlogging, interviews, or live streaming without distracting your audience. 【Advanced AI Noise Reduction】Features 3-level adjustable noise cancellation (low/medium/high) with AI technology, capturing clear audio up to 120dB SPL even in busy environments. 【Instant Pairing & Stable Transmission】Plug the receiver into your iPhone (8-14) and start recording immediately without Bluetooth-compatible pairing or apps. Enjoy stable transmission up to 328 feet with real-time connection status via blue LED. 【AI Voice Changer】One-touch switch between male, female, and original voice modes (indicated by blue LED flashes), ideal for role-playing videos, game streaming, podcasts, or fun family recordings. 【Versatile Compatibility】Suitable for various scenarios from YouTube/TikTok videos to professional interviews, online courses, and live concerts. Specifications: Transmitter: Transmission mode: 2.4GHz digital frequency band Signal modulation: Gaussian frequency shift keying Polarity mode: omnidirectional Antenna type: PIFA Operating distance: 100m (obstacle-free) RF output power: <10dBm Distortion: <0.1% Frequency response: 20Hz-20kHz Sensitivity: -36dB Sampling rate: 48kHz Bit depth: 16bit Signal-to-noise ratio: >80dB Audio input: built-in capacitor microphone Built-in battery capacity: 65mAh Power supply: built-in lithium battery power supply/charging box contact charging Battery life: about 6 hours Charging time: about 1.5 hours Weight: 5g Dimensions: 31x15x16.4mm Operating temperature: 0℃~ +50℃ Storage temperature: -20℃~ +50℃ Lightning receiver: Transmission mode: 2.4GHz digital frequency band Signal modulation: Gaussian frequency shift keying Polarity mode: Omnidirectional Antenna type: PIFA Operating distance: 100m (obstacle-free) RF output power: <10dBm Distortion: ≤0.1% Frequency response: 20Hz-20kHz Sensitivity: -36dB Sampling rate: 48kHz Bit depth: 16bit Signal-to-noise ratio: >80dB Audio output: iOS Lightning output Power supply: external device power supply Weight: 3g Dimensions: 23.2x22.6x10.1mm Working temperature: 0℃~ +50℃ Storage temperature: -20℃~ +50℃