Product information: Mask size: 31*19.7cm Neck size: 34.5*23.3cm Package size: 37.5*26.3*5.5cm Light mode: Red/Blue/Yellow/Infrared Gear: 1-3 Timing time: 10-30min Mask lamp bead: 240 Voltage: 100-240V Neck lamp bead: 240 Input frequency: 0.3A 50/ 60HZ Output power: 5V DC 3000MA Operating temperature: 0-40°C