Blue Jay Slip On Knee Support Open Patella w Stabilizers Sm Otoscope Opthalm Replac Heads any profession and task where Jobst Opaque Sensitive any profession and task where proper posture and good body mechanics are important * All materials are hypoallergenic * Hand wash * Unisex design accommodates most physiques * The Twin Stim which gives the user the choice of five Modes of TENS and two Modes of EMS * Features include dual channels seven modes timer patient compliance meter new stronger 100 mA output safety amplitude cover sturdy metal belt clip and rubber side railings for maximum handling * Five TENS Modes: Burst Normal Modulation SD1 SD2 * Two EMS Modes: Synchronous Alternate * System includes device lead wires four self adhesive reusable electrodes 9 volt battery hard plastic carrying case and instruction manual * Patient compliance meter can store up to 60 sets of operation manual * Power Source: 9 volt battery * Pulse Width: 50 300 s adjustable * Pulse Rate: 2 150 Hz adjustable * Pulse Ramp: 1 8 seconds * Pulse Amplitude: 100 mA peak into 500 phm load * Contraction Time: 2 90 seconds * Relaxation Time: 2 90 seconds * Wave Form: Asymmetrical Bi Phase Square Pulse * Timer: 1 60 minutes or continuous * One year warranty HCPC Code: A4467 * Color: black * Designed to provide excellent support to stiff weak or injured knees * Knitted elastic provides moderate compression * Open patella provides additional support * Medial and lateral stays help stabilize the knee * Size: small (12 14 ) * To size measure around the kneecap