What comes in the box?

The unit, a carrying case, four V-Trode self-adhesive electrodes, a 9V battery and instructions.

Does it have a timer?

Not on the standard unit. A timer is listed as an optional accessory, so most users time sessions themselves.

Yes. It has two channels, and pulse frequency and width are set independently.

Continuous, modulated and burst.

A single 9V battery, which is included. The unit weighs about 4 ounces with the battery in.

The V-Trode electrodes are self-adhesive and reusable until the gel loses tack; replacements are sold separately.

At Medical Supplies & Equipment Co., for $40.00, 47% under what the other stores charge, as of our latest check.

4 stores we checked sell it, including Medical Supplies & Equipment Co., Just Medical Store, CardiacDirect, Eray Medical Supplies.

$40.00at Medical Supplies & Equipment Co.Checked Nov 1

47% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when.

It checks today's price at every store, compares the alternatives and answers in about a minute.