*Dual channel *Pulse Amplitude: Adjustable, 0-80mA each channel *Pulse Rate: 2 Hz-120 Hz adjustable *Pulse Width: 250s fixed *Timer: 30 minutes, 60 minutes and continuous *Wave Form: Asymmetrical Bi-phasic square pulse *System Includes: Stimulator, Lead Wires, 4 Self-Adhesive Reuseable Electrodes, 9 Volt Battery, Instruction Booklet, Hard Plastic Carrying case. Technical Specifications: *Channels: Dual, isolated between channels *Wave Form: Asymmetrical Bi-phasic square pulse *Pulse Amplitude: Adjustable 0-80mA peak into 500 ohm load each channel, constant current *Pulse Frequency: 2Hz-120Hz adjustable *Pulse Width: 250s fixed *Function Modes: S: Synchronous C: Constant A: Alternating *Timer: 30, 60 minute and continuous mode selectable *ON Ramp: Adjustable 1-8 seconds. 1sec/step *Cycle ON/OFF Time: Adjustable 1-30 seconds. 1 sec/step *Maximum Charge: 21 micro coulombs per pulse *Voltage: 0-110 Volt (Open Circuit) *Power Source: 9 volt alkaline battery or similar rechargeable cell *Battery Life: 70 hours average usage (alkaline) *All values have 10% +/- tolerance