Both the probe and the control box have 2017 on them. I bought it new in 2018, and used it lightly since I've had it.

2400VS Laser Therapy System

Year of item: 2017

Above Average Working Condition

Brand: Respond Lasers

When Was This Item Last Used? 11/2022

Dimensions - 6.5" X 3" X 7"

Approx. Weight: 4.2 lb

Like all of the Respond Systems laser models, the Super-Pulse probe for this unit is a true super pulse that allows a high peak power for a maximum depth of penetration of up to 5” with NO risk of burning.

This model is a step up from the 2400XL in functionality. Not only does is have the ability to enter a specific dosage protocol, but it also has a touch-pad volume and pulse frequency control. Class 3b

904nm Super-Pulsed wide head with 4 diodes and peak power of 80W Ability to select dosage in joules with audible time notification of dosage delivery