One-click noise reduction with 48kHz high-definition audio quality Frequency response range of 20-20kHz for high-quality reproduction of true sound Built-in rechargeable lithium battery provides up to 10 hours of continuous playback Freedom to switch between mono and stereo output modes. Rotating buckle-style windproof cover ensures secure installation and prevents detachment Receiver comes with a buckle for easy replacement of adapters. 3.5mm TRS analog output & USB-C,for iOS IP digital output—widely compatible with cameras, smartphones, computers, and more Specification: Transmission Method: 2.4GHz digital frequency band Signal Modulation: digital modulation Polar Mode: omnidirectional Antenna: ceramic antenna Operating Sistance (without obstacles): 100 meters (measured in accordance with FCC standards in an open and interference-free environment.) RF Output Power: <10MW Distortion: <0.1% Frequency Response: 20Hz-20kHz Sampling Rate: 48kHz Bit Rate: 16Bit Signal-to-noise Ratio: >85DB Sensitivity: -42DB Audio Input: TX: built-in microphone Audio Output: RX: 3.5mm TRS adapter/Type-C adapter/MFi certified IP adapter Battery Specifications: TX: 3.7V/95mAh; RX: 3.7V/120mAh Power Supply Method: built-in lithium battery power supply/charging box contact charging/Type-C charging hole TX Built-in Battery Life: about 10 hours RX Built-in Battery Life: about 6 hours TX Weight: 12g (with terminal) RX Weight: 15g (with terminal) TX Size: 59x16.2x12.8mm RX Size: 61x18.2x12.8mm Working Temperature: 0℃ ~ +50℃ Storage Temperature: -10℃ ~+ 50℃