The AWQ-104LT is the latest improved version of the multipurpose AWQ electro-therapy series, now with 4 outputs and large 0.5" x 0.9" LCD digital meter.The AWQ-104LT is able to display and fine tune frequency selection through two separate ranges: 1 to 100 Hz (low) and 10 to 1,000 Hz (High).Unit also features: 4 independently controlled output channels which provide stimulation to 8 needles, polarity reversal [i.e. tonification (+) and sedation (-)] switches for each channel, Hi/Low voltage switch, and 2 frequency ranges (X1, X10). New integrated circuitry assures no interference or crossover.Powered by 9 volt battery. Three adjustable pulse modes are also offered: continuous, intermittent (discontinuous), and dense-disperse.Accessories include 5" long pen shaped treatment probe with hand ground pole and wire, 4 sets of alligator clip wires, sturdy carrying case, and instructions.Warranty: 1 yearSuitable for use with:Alligator Clip Lead with 3.5mm JackJapanese Clip Leads3.5 MM Pin Type Lead (with extension types: Small Alligator Clips (pin), Duck Clip Lead, Claw Clip Lead, TENS Pad) Specifications Name AWQ-104LT Acupuncture Stimulator