Features: New brand and high quality. External trigeminal nerve electrical stimulation (TENS) technology and bioelectronics technology were combined with the traditional Chinese medicine acupuncture and physiotherapy mode. By sending electrical stimulation at a specific frequency, to release pain relieving hormones to increase the tolerance to primary migraines. It can self adjust the output intensity of physiotherapy pulse. Use it 20-30 minutes before going to bed to relieve pressure, help to improve sleep quality and let you have a better sleep. Use it at least twice a day. Please use the attached strap to fix it, and make sure to remove the main unit when closing. Small and slim, skin friendly materials, you can use it when you're free. It's easy to carry, free from time and space restrictions. 24-hour full-time private doctor service, it is easy and convenient to use at will, completely improve the sleep quality, and let you really sleep properly. Compact and portable, convenient to carry for office or business. High-grade exquisite packaging, ideal gift for friends or the elders. Specification: Material: ABS Suitable: Head Color: White Charging Time: 0.5h Size: 145*40*12mm Note: Please allow 1-3mm differences due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Included: 1pc * Sleep Instrument 1pc * Sticky Tube 1pc * USB Cable 2pcs * Sticky Paste 1pc * Manual 1pc * Auxiliary Cover Packed Safely in Retail Box.