SPEAKER SPECIFICATION
Speaker diameter 13mm
Pouput level 107.3 db~3db
Rated input power 0.04w
maximum input power 0.08w
output impedance 32ohms~15%
MICROFONE SPECIFICATION
Type of element -piezoelectric accelerometter
sensitivity-58~3db
Output impedance--4.7k ohms.
Compatible with Alan , Midland devices