Color: blue, red Material: Plastic + Electronic Components Rated voltage: AC220V, 50\/60Hz Rated power: 28-30W Vibration frequency: high 3200 rev \/ min; low 2600 rev \/ min Power supply: USB charging cable charging or AAA battery 3 (not included) Scope of application: Universal Anti-traditional Chinese medicine acupuncture, combined with traditional Chinese medicine theory, massage to stimulate the site, more effective slow down pain; High frequency vibration infiltration of muscle tissue, simulation people beat, strength and comfort rhythm; Pure copper exchange movement, heat slowly, strength is more stable, 3C certified power cord, durable, more stable quality, the use of more secure. Packing list: 1 X Dolphin Massager 3 X Massage head 1 X USB charging line