PERFECT REPLACEMENT – Wireless amplifier speaker mic is an ideal replacement unit for your favorite N511-UHF Nefficar wireless voice amplifier. Whether you have damaged your microphone, or you want to keep an additional microphone as you have long lecture hours, you can buy this mic. 

COMPATIBILITY - Works only with NEFFICAR wireless voice amplifier. 

EXTEND SPEAKING TIME – With a powerful upgraded 550 mAh battery, the wireless voice amplifier speaker mic can last for a total of 5-6 hours.

SIMPLE DESIGN - Bluetooth amplifier speakers wireless mic can be easily recharged through a micro-USB port and voice can be controlled with the help of +/- buttons on the mic.

COMFORTABLE AND GOOD FIT – Amplifier microphone fits comfortably on the ears and will fit tightly without falling off or slipping away.

QUALITY YOU CAN TRUST – Amplifier mic set for Nefficar voice amplifier is made with strict manufacturing standards, just like the original mic. 

Note - even if you buy 2 microphones, at a time only 1 can be paired with the Nefficar voice amplifier. So, this can just act as a replacement or standby unit.