This air pressure foot massager will apply multiple points of pressure to both sides of your calf muscles. All it requires is for you to press the on switch; then you will soon find your aches and pains being eased by the electrical massaging patterns. Nerves, muscles and joints will all be relieved by massaging your legs. There are two leg attachments along with the air massager itself.
Power Supply：100-240V AC, 50/60Hz frequency and 0.2A, can be converted to DC6V 800mA
Ambient Temperature Range：-20℃-+55-20℃
Atmospheric Pressure Range：50kPa-106kPa
Smart knee massager PG-2015F4 has 4 functions: air pressure, vibration, heat and red light therapy functions, which can acupuncture points ,improves the blood flow & circulation around the knee, helps to soothe the pain of the knee joints and relax the muscles, tense sore muscles around the kneecap.
Power Supply:5V DC 1A(USB charge)
Lithium Battery:3.7V DC 3000mAh
Heating Temperature:around 38°C ~ 48°C