The Twin Stim Digital unit combines the benefits of two devices: the EMS 7500 and TENS 7000. When merged together, a strong 100 milliamps of output current is pumped out. Features include 7 modes, patient compliance meter, sturdy metal belt clip, dual channels that are isolated between channels, etc. The pulse amplitude is adjustable between 0-100 mA. There are 5 TENS modes, which include Burst (B), Normal (N), SD1 (Strength Duration, SD2, and Modulation (M), and two EMS modes: alternate and synchronous. The pulse width and rate are also adjustable, from 50-300 microseconds to 2-150 Hz (1 Hz/Step) respectively. The timer is also adjustable. It can be set from 5 minutes to an hour, or continuously. Accessories include a stimulator, carrying case, 9-volt battery, lead wires, package of self-adhesive electrodes, and instruction manual.