This page shows the various 'other' instruments available from JMI: harmonicas, accordions, saxophones, keyboards, and the Vox radio microphone.
The Vox radio microphone was described as follows:
The solution for performers who wish to move around freely without direct contact with the amplifier or the encumbrance of connecting cables. A Lavalier type microphone is connected to a miniature transmitter concealed in a pocket. The compact receiver unit fits to any high impedance type amplifier. GPO approved. Crystal controlled. Transmitter and Receiver operating on 174.6 to 175 m/cs
$2000
$100
$1250
$55
$1800
$699
$9999
$1200
$600
$1800
$3000
$999
$3295
$4572
$280
$1000
$60
$525
$130
$1000