AOKO Electric Air Preure Knee Maager Vibration Heating Physiotherapy Knee Elbow Joint Maager Relieve Rheumatic Arthritis Health Specification Item Type:Knee Maage Rehabilitation Color:White Material:ABS Voltage:5V Power:5W Time:15/20/25/30min Battery capacity: 2600 mAh Charging time: 3 hour Use time: 1-1.5 hour Weight:595g Size:17*24cm/6.69*9.45in Noise: 65dB Executive standard: GB4706.1-2005, GB4706.10-200 Product Include 1*Main Machine 1*USC Cable 1*Manual 1*Box Feature 1. It combines red light therapy , low level laser therapy, kneading maage(Air preure & Vibration) and far infrared heating therapy into one device, to ensure the good treatment efficiency. 2. Imitate artificial maage: 4D airbag wrap, relax knee soft tiue, by squeezing the knee around the airbag. Automatic filling and relaxation to achieve the effect of maaging the knee 3. The battery capacity is 2600 mAh, fully charged in 3 hours, it can be used for 1-1.5 hours. 4. The exterior design is 90 degree shape, suitable for the knee, elbow and ankle pain relief 5. Its belt is flexible and the size can be adjusted as the customer demand, suitable for various knee; 6. Humanized design with big LCD touchable display, easy to operate; portable, non-invasive, no side effect .