Unlike most stores, the version we sell in our store is the 【S17 High Configuration Stable version】, which has a more stable battery system, excellent noise reduction ability, and an unobstructed transmission distance of over 50 meters. Please take a look at our noise reduction and distance testing video: Model: S17 (2023 New) Compatibility: For iPhone, For Type-C Android Phone, Computer, SLR Camera, Speaker, Sound Card.(Some Android phones need to open OTG to work properly. Settings - search for "OTG" - open it)<br> Suitable for small meetings, live broadcasts, speeches, blog recordings, video recordings etc.<br> <br> Features: Three-In-One Compatibility Is Extensive.AI Intelligent Noise Reduction. It Can Be Charged During Use. Support mute mode and reverb mode.Easy To Use.The use time is about 6 hours. It supports charge the mobile phone during use. The microphone transmitter supports TypeC analog signal earphone Real-time listening. The microphone receiver supports 3.5mm earphone Real-time listening.Monitor earphones are only used to listen to your own voice for easy adjustment. It cannot be used for other functions and devices. Please choose according to your needs.<br> <br> S17 specifications<br> Noise reduction: default AI intelligent noise reduction<br> Reverberation: supported, requires manual switching<br> Mute: Supported, requires manual switching<br> Transmission distance: obstacle free distance ≥ 15 meters; The distance between human obstacles is about 7 meters<br> Transmission protocol: 2.4G channel<br> Delay: ≤ 30ms.<br> Directionality: -38dB ± 3dB omnidirectional silicon microphone.<br> Frequency response: 20Hz-20KHz<br> Sampling rate: 32KHZ or 48KHZ<br> Signal to noise ratio: ≥ 64dB<br> Microphone battery/usage time: 80MAH/6H<br> Receiver battery/usage time: 120MAH/6H<br> Working current at the transmitting end: 11-12mA<br> Working current at the receiving end: 20-21mA<br> The battery charging time is about 1.5 hours<br> Charging input voltage DC5.0V<br> Charging adapter: 5V/1A<br> Working temperature -10 ℃~45 ℃