https://alexnld.com/product/mcoplus-mco-uhfwmu48-48-channel-uhf-wireless-lavalier-lapel-microphone-with-2-receiver-1-transmitters-for-dslr-camera-xlr-camcorders-pc-smartphone-mobile-devices-video-interview/?hilite="SYNCO WMic-T1 Wireless Lavalier Microphone System Lapel Video Mic 16 Channel Max 50m Transmission Range for Camera and Smartphones"