Features： 1、Help comfortable sleep, relieve head discomfort, relieve the boredom and deep soothing. 2、Low frequency pulse is safer and more effective. Intelligent voice prompt real-time broadcast. 3、Real-time broadcast current usage mode and strength, wear it for 15 minutes and sleep peacefully for 8 hours. 4、Physical improve sleep quality, no side effect and simple operation. 5、Through the low-frequency pulse to generate accurate stimulation waves (commonly known as "bioelectricity"), the simulation of traditional Chinese medicine massage techniques for physical massage. It can calm the mind, help sleep. Specification： Item Type: Head Massager Material: ABS Optional Type: Voice Heating Red, Voice Heating Gold Battery CapacIty: 600mah Voice: Chinese Gel: 5ml Charging Time: About 2H Charging Input Voltage Current: 5V/1A Full Power Usage Time: About 10 times (15 minutes/time) Package List： 1 x Sleep Machine 1 x USB Cable 1 x Gel