Smart 9V QC 2.0 Auto Adapter: Charging automatic stops when full charged. Protect against short circuiting, over-heat, over-current, over-charging. Built-in safeguards protect your devices from excessive current, overheating, and overcharging Adaptive Quick Charging USB Charger: Fastest possible charge battery from 0 to 50% in about 30 minutes (Fast charging works ONLY for Samsung Android Phones with fast charge function). Portable Travel Charger: Compact light-weight for travel. Pocket-size & easy to carry anywhere Universal Cell Phone Chargers: For Samsung Galaxy S7, S7 Edge, Note 5, Note 4, Note Edge, S3, S4, S6, S6 Edge, S6 Edge+ and Android Phones for conventional charging.