LifeWave X39 & X49 Performance Bundle – 60 Patches. Contains (1) LifeWave X39® sleeve with 30 patches, (1) LifeWave X49T sleeve with 30 patches, (1) X39® Branded Sticker and (1) X49T Branded Sticker. Backed by over 10 years of research and development, as well as many clinical studies, X39® has been shown to provide an abundance of health benefits related to:Mental clarity. Quality of and duration of sleep. Promote performance, strength, and stamina. Support a healthy cardiovascular system. Reduce muscle soreness and promote recovery from exercise. Support fat loss when used in tandem with a healthy diet and exercise program.