Specifications

The management reserves the right to change the specification and design of the earplug at any time

Power Supply: 9V PP3 LR06, MN 1604 or equivalent (Alkaline recommended) or external DC from a battery or mains supply between 9 and 18v. This is via a 2.5mm DC connector amd may be either polarity.

Battery Life: Approx 10 Hours continuous use amplifying a signal. (but considerably longer with typical intermittent use)

Sender Section: Nominal 0dB -20dB or -40dB switchable
Oscillator: Sine wave - Distortion nominally 0.1%
Pink Noise: nominally <20Hz - >20Khz falling at -3db per octave

Output Impedance: 5Kohm

Monitor Section Input Level: Nominal 0dB, -20db or -40 dB switchable

Input Impedance: 1Mohm

Please Note:

The earplug has been designed as a professional audio tester and it is intended for use as such. However the management cannot anticipate all the situations that it will be used in and cannot guarantee that it will be suitable for all such uses. The management can accept no responsibility for consequential loss or damage caused to other systems following the use of the earplug.