UL 2056 certified batteries protect your devices against excessive current, overheating, overcharging, has short circuit protection. 4 Minimalist LED indicator shows remaining battery level at a glance (0--25%--50%--75%--100%). Compatible with all mobile phones, tablets, wireless headsets, GPS devices, iPads, speakers, etc..... 

• PowerUp Trio Backup Battery models can be charged using Type-C, Lightning or Micro USB cables so you never have to worry about having the right cable because it will always be compatible
• Dual USB Ports allow you to charge 2 devices at the same time
• Smart Charge Technology: optimizing output voltage during charging session
• Stable, High Capacity Portable Mobile Phone Power Bank
• Small compact size is perfect for your purse or to carry around in your pocket so you never have to worry about charging your  phone again
• LED Power Indicator Display will show you remaining power
• Product Dimensions: 3.8" x 2.5" x .9"