The 4000 is a compact backup battery that extends the life of your average smartphone by 3 times.  Perfect for the commute or day trip. 

All Swiss Mobility chargers come pre-charged and ready to use out of the box; compatible with Android, iOS, cameras & more. 

• 4000 MAH lithium ion battery pack
• Battery life indicator
• Over 18 hours of additional talk time
• Up to 720 hours standby time
• 1 amp - 2.1 amp adaptive rapid charging for tablets & smartphones
• Built in LED safety light
• Lanyard Slot
• Compact Design
• Includes: Micro USB Power Cord, User Manual, Storage Pouch

Dimensions: 2.9" x 2" x 0.9"