SX31 3 in 1 Collar Clip Wireless Noise Reduction Microphone

1 3 in 1 output suitable for iPhone Type C smartphones and 3 5mm interface devices2 Automatic noise reduction reverberation monitoring external playback and mute functions3 2 4G wireless pairing automatic connection after power on easy to operate4 Compatible with various devices such as smartphones computers tablets speakers amplifiers cameras etc Specifications 1 Microphone head digital microphone2 Input voltage 5V3 Microphone battery 200mAh4 Receiver battery 200mAh5 Battery life 12H6 Signal to noise ratio 64DBM7 Transmission delay 30MS8 Sensitivity 42dB9 Frequency response 20 20KHZ10 Transmission distance up to 15M without obstaclesNotice 1 The laptop needs to be set to microphone input before use 2 Only applicable to Type C devices with OTG function production after 2019 is better 3 Some Android phones need to activate the OTG function when plugging in the USB C receiver