Early birds, you may also order from here for up to 20% discount. 
 
Size: 4.5cm*4.5cm*2.2cm (1.77 inches * 1.77 inches * 0.87 inches)
Cooling power max: 5 watts
Battery last 1~1.5 hours (continuous cooling)
Charging time: 40 ~ 60 mins (USB 2.0A)
Cooling unit weight: 27g (0.95 ounces)
Power unit weight: 25g (0.88 ounces)
Total weight: 75g (2.65 ounces)