Amplify your voice - Wireless
The Wireless FM Microphone Headset is a great addition to the Voiz Amplifer. If you prefer no cord than this headset is for you. Wear it while you wear our Voiz Ampifing unit.
 
Specification:
Transmit power: ≤10mW
Receive distance: 20 meters 
Power supply: built-in 450mAh lithium battery
Charging time: 2-3 hours
Working time: about 8 hours
Weight: 50g