Professional 4 Channel UHF Wireless Four Microphone Cordless Handheld Mic System

Adopt Bluetooth 4.2 technology, support audio input for phones and Bluetooth equipment in 30ft/10m of stable transmission range. Please noted that UHF wireless microphone do not support Bluetooth speaker output. With a 1/4 microphone jack, you can connect an additional wired microphone or a wireless microphone with receivers. The microphones can not be rechargeable. You need extra equipment to output the sound. The AA batteries in the package are for testing, which only can last 1 to 2 hours. Please replace new batteries for better using experience.