The pocket kairo has a built-in lithium-ion battery which can last up to 7 hours when charged to full power. The surface temperature can be set according to customers' needs. This lightweight and compact pocket warmer keeps your hands warm in the cold winter.

• Weight: 80g.
• Power supply: 100V-120V 50Hz or 200-240V 60Hz.
• Charging time: 5 hours (AC adaptor/USB connector).
• Standard using time: (strong mode) 5 hours, (normal mode) 7 hours.
• Average surface temperature: (strong mode) 46°C, (normal mode): 41°C.