Basic version --The battery is 150mAh, Foot pad size: 30 * 32cm. 6 modes, 19 massage levels Upgraded version - battery 150mAh, foot pad size: 30 * 32cm. 10 modes, 39 intensities, LED LCD display Advanced low-frequency pulse technology to stimulate intelligent massage points on the ankle, Achilles tendon and muscles of the calf and promote blood circulation. During use, gentle microcurrent flows through the soles of the feet and relaxes the entire calf. Modes + 1 x 10 easy to use: modes: 1 massage, 2 kneading, 3 acupuncture, 4 rollers, 5 knocks, 6 relaxation; 18 adjustable microcurrent strengths and heat sensation. The EMS massager effectively supports the lymphatic system, relieves leg swelling and pain. It can optimally balance the arch and heel and shape the calf. USB charging, one charge is enough for about 20 applications. The device turns off automatically after 15 minutes. The EMS foot circulation massager provides significant relaxation and pain relief for feet and legs. A great gift for friends. Easy to clean: LED LCD display. the foot massager is foldable and easy to carry. After each application, it can be easily wiped clean with a damp cloth or paper towel without the hassle of cleaning work. Warning: please take off your socks. During use, the feet must not leave the mat, otherwise the mat will stop. Ease of foot: the non-slip underside protects your safety. It is made of soft yoga mat material with a leather surface. The soles of the feet feel slightly warm, similar to a foot bath, and relieve fatigue of a whole day. Especially suitable for people with foot pain, cold feet and other ailments. Material: PU + EVA Warm NOTE: Christmas is coming and we will include a Christmas card that you can give to your friends or family as a Christmas giftBy the way: Merry Christmas