BAKTH 36W 4-Port USB Wall Charger Travel Adapter with PowerIQTM Technology for Smart Phone and Tablets - White[18-Month-Warranty] Exclusive PowerIQ Technology: Detects your device to deliver its fastest possible charge speed up to 2.4 amps per port or 7.2 amps overall. Highest Power: Category-high output of 36 watts through four ports lets you charge multiple phones, tablets and other USB-charged devices simultaneously. Guaranteed Safety: UL certified design, industry grade materials and premium circuitry ensure superior performance and reliability. 100-240 volt input ideal for international travel. BAKTH welcome guide, our fan-favorite 18-month warranty and friendly customer service.