Specification:Material: ABSPower: 33WFrequency: 50HzSize: 44.5cm x 15.5cm x 14.5cmWorking voltage: AC 220VStrength control: 2 LevelsMassage function: Vibration massage+AnionFeatures:1. The Heat attachment helps to increase circulation for muscle comfort and relaxation.2. This comes complete with 4 massage attachment heads to ensure relief. 3. The ergonomic design is perfect to use on the lower and upper back, legs, arms and feet.4. Dual speeds allows you to dial in from a gentle relaxing massage to a deep invigorating massage depending on your condition or needs. 5. This unit packs enough power to thoroughly massage your body, and can travel with you anywhere you like.6. Best massager for stress, muscle soreness, stiffness, or chronic pain, such as those associated with chronic back pain, fibromyalgia, joint pain, arthritis. Package included:1 x Handheld Massager 4 x Spare silicone massage head1 x InstructionsNotes:1. Please read the instructions carefully before use.2. Manual measuring, please allow 1 ~ 3mm error,thank you.3.Please leave us a message about your prefer color,or we will send by random. 4. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.