Romet R series
http://www.romet.us/electro-larynx-models.html
Romet is a series of electrolarynxes developed by an American company Romet Inc. The model series consists of four devices: R120, R210, R310, and R440 ECHO.
Contents
Main characteristics
The overall appearance between the individual models differ only marginally. Every device has a tubular shape with the controls on the body. The material the devices are made of plastics with soft outside cover more comfortable handling. Each is powered by a one 9V rechargeable lithium-ion battery. The individual differences between the devices are discussed below:
R120 - This is the most basic model of the series. It has a plastic barrel and features a basic on and off setting button. The user has no control over the volume or pitch of the artificial voice.
R210 -
R310 -
R440 ECHO -
All models come with an additional rechargeable battery and a battery charger.
Purpose
Company & People
http://www.romet.us/about-our-company.html