Specifications:

• Working voltage: 3.7V
• Usage time: 15-30 hours
• Product size: 90 * 90 * 31mm/3.54*3.54*1.22''
• Power: 1.5W
• Origin: CN(Origin)
• Model Number: /
• Material: ABS / PC
• Input voltage: DC5V = 0.8A
• Charging voltage: 110-240V
• Charging time: 1.5 hours
• Certification: None
• Battery capacity: 1200mAh
• 6. Easy to use: long press the on / off button to start the sleep therapy instrument.