Hotec Wireless System For Live Performances With Two Headset Microphones, FULL COMPATIBILITY: Wireless receiver with universal 1/4? plug works with mixers, PA speakers, karaoke machines w/ 1/4 MIC IN for voice amplifying and phones, laptops, DSLR cameras (with adaptor included) for recording. CLEAR SOUND QUALITY: Dual wireless lavalier microphone system offers high quality sound transmission and clear voice at operating range up to 100ft line of sight without feedback or distortion. EASY SET UP: Plug and play, powered by rechargeable batteries, select the lapel or the headset mic and plug it into the microphone socket of the transmitter, turn on both, you are ready to go. SELECTABLE FREQUENCIES: With 32 selectable UHF frequencies for each channel, less prone to electric appliance interference and offers stable signal transmission and allows multiple sets working together without interference. MULTI-USE APPLICATIONS: Ideal for live performances like preaching in church, weddings, presentations, school plays, trainings, public speeches, interviews or video and audio recording