The Echo is an all-new rechargeable oscillator from addaday. The Echo roller can be used alone or if you prefer more cushion it can be placed in a hollow foam roller with a diameter of 3 7/8" or larger. It can also be used to oscillate any muscle group in a static or dynamic position. Echo can be used on various parts of the body.

There are three different speeds for different intensities: low intensity, high intensity, and varied intensity. The roller will automatically shut off after 10 minutes.

Charging time is 3-4 hours for 1.5-2 hour usage. 
The Echo has a diameter of 3 3/4" and is 11 7/8" long.