Notetalker Wireless microphone comprises a microphone/transmitter which can be worn by a speaker, teacher or lecturer with the boom-headset attachment or placed on the desk in front of the speaker. This then connects wirelessly with a receiver which can be plugged into your smartphone or tablet using a Conversor adapter cable for powered microphones. The receiver can be up to 15 metres away from the microphone/transmitter. Battery life of up to 6 hours, and rechargeable using a smartphone charger or powercard. The transmitter can also be plugged in to a laptop, speaker or other audio device.