Biofeedback device

Description

FIG. 1 is a front perspective view of a biofeedback device showing the claimed design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a first side view thereof;

FIG. 5 is a second side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a front perspective view of a biofeedback device showing the claimed design.

The broken lines shown in the figures depict portions of the biofeedback device that form no part of the claimed design.

Claims

The ornamental design for a biofeedback device as shown and described.