WIRELESS MICROPHONE  BUILT IN ECHO AND TONE CONTROL With patented Audio Reference Companding for clear sound Wireless microphone build in echo and tone control UHF-300 Series Rechargeable Wireless Microphone Karaoke Cordless Microphone with Volume & Echo Control and Receiver, UHF Handheld Dynamic Microphone for Singing Karaoke Speech, Black Best Dual UHF Wireless Microphone with Volume Control + ECHO Function. No need to set, just plug in and use! Perfect for karaoke, speech, meeting, performance, indoors or outdoors. Rechargeable UHF Dual Wireless Microphone with Receiver System. Both microphones & receiver are rechargeable. Each microphone has rechargeable battery, and also a receiver with Built-in rechargeable battery. When fully charged, the microphone's working time will be about 8 or 10 Hours until you need to charge again, the receiver's working time is about 5 Hours; Dual USB Charging Port for Charging.

WIRELESS MICROPHONE BUILT IN ECHO AND TONE CONTROL With patented Audio Reference Companding for clear sound Wireless microphone build in echo and tone control UHF-300 Series Rechargeable Wireless Microphone Karaoke Cordless Microphone with Volume & Echo Control and Receiver with high and low tone adjustment echo and Bluetooth, UHF Handheld Dynamic Microphone for Singing Karaoke Speech, Black Best Dual UHF Wireless Microphone with Volume Control + ECHO Function. No need to set, just plug and use! Perfect for Karaoke, Speech, Meeting, Performance, Indoors or Outdoors. No need to buy batteries! Rechargeable UHF Dual Wireless Microphone with Receiver System. Both microphones & receiver are rechargeable. Each Microphone has rechargeable battery, and a receiver with Built-in rechargeable battery. When fully charged, microphone working time will be about 8 or 10 Hours before needed to charge again, receiver working time is about 3 Hours; Dual USB Charging Port for Charging.

WIRELESS MICROPHONE BUILT IN ECHO AND TONE CONTROL With patented Audio Reference Companding for clear sound Wireless microphone build in echo and tone control UHF-300 Series Rechargeable Wireless Microphone Karaoke Cordless Microphone with Volume & Echo Control and Receiver with high and low tone adjustment echo and Bluetooth, UHF Handheld Dynamic Microphone for Singing Karaoke Speech, Black Best Dual UHF Wireless Microphone with Volume Control + ECHO Function. No need to set, just plug and use! Perfect for Karaoke, Speech, Meeting, Performance, Indoors or Outdoors. No need to buy batteries! Rechargeable UHF Dual Wireless Microphone with Receiver System. Both microphones & receiver are rechargeable. Each Microphone has rechargeable battery, and a receiver with Built-in rechargeable battery. When fully charged, microphone working time will be about 8 or 10 Hours before needed to charge again, receiver working time is about 3 Hours; Dual USB Charging Port for Charging.