You'll definitely find this useful! Amazing features of the EMS Hot Neck Warmer! ●Point 1 Warms your neck to a maximum temperature of approximately 45°C. Warming your neck makes your whole body feel warm. ●Point 2 It has an automatic OFF function, so you don't have to worry about leaving it on! (Automatically turns off after 15 minutes) ●Point 3 Cordless and portable! Great for travel or during breaks♪ ●Point 4 Equipped with two EMS pads! Authentic vibrations directly attack your neck! ●Point 5 Weighs only about 133g! Very lightweight and doesn't put a strain on your neck. OK to wear during sports! Product size (laid flat) approx. W13.5 x D16 x H4.5cm Product weight: approx. 133g Material: Body: ABS, TPR Electrode pads: Stainless steel Rated power: DC5V 1A / Rechargeable (400mAh lithium-ion battery built-in) Power consumption: 1.5W EMS function: Stimulation patterns: 6 modes / Intensity: 9 levels adjustable Heating function: Maximum temperature: approx. 45°C Accessories: Main unit, USB cable (MicroUSB 2.0 Type-B) ☆Shipped via Yu-Packet Post, so the contents will be removed from the box. If you prefer the box, it can be accommodated for an additional 550 yen.