15 minutes using equals to 1500M running or 30 minutes swimming.
Evertone EMS Fast Trainer (2 Pack) Black N/A Exercise Machine Assembly Required: No Care Instructions: Hand Wash Air Dry Sizing Chart: No Size Fabric/Material: PU Leather Dimensions: 1. Each EMS machine can be adjusted individually Select different mode and intensity respectively to meet your desired muscle training effect.0 inches (W) x 9.