Xtar U1 USB charger Product details and features: Ideal for travel Overvoltage protection, overcurrent protection, short circuit protection, flame retardant material Built-in microchip, communicates with the consumer (MP3, smartphone, etc.) and selects the optimal charging current (max. 2.4A) Synchronous rectifier and voltage compensation technology enable fast charging, at the same time it keeps the temperature low during the charging process Nickel-plated full copper USB sockets and gold-plated contacts minimize resistance and maximize performance Input: 100V - 240V 150mA Output: DC 5V 9A Max. 45W Size: 100 x 80 x 30 mm Weight: 196 g Compatible models: MP3 player, Amazon Kindle Fire / HDX Xtar: MC1, MC1 Plus, MC2, VC2, VC2 Plus VC4, MC0, Xp1. Efest: Xsmart. Keeppower: L1, L2 Soshine: E3,.