DescriptionThis item is a set of body massager, adoption of premium material for durable and practical to use. It helps improve blood circulation, effectivelyrelieving muscle rigidity and pain problem. A great gift for yourfriends and families. It can bring much convenience to your life.Features-Color: White -Material: ABS -Size: About 12.50X6.20X2.50cm/4.91X2.44X0.98inch - Using ABS material of good quality and fine craftsmanship, strong and durable for long serving life. - Skin-friendly design, it's comfortable to wear, convenient to use. - Helps to improve blood circulation and effectively relieves muscle stiffness and pain. - Lightweight and portable, you can use it for massage anytime, anywhere. - Suitable for home, office, car, outdoor, sports, living room, bedroom, etc.Specification-Recommended use time: 0.5 hours -Battery life: 3 hours -Battery capacity: 300mAh -Rated voltage: 3.7V -Output frequency: 1~ 120Hz -Output pulse width: 100~250uS -Operating temperature: 5~40 -Storage temperature: -25~70