The A3TC from Zendure includes a USB-C input/output and USB-A output for versatility and performance in a small form factor. 【USB-C & ZEN+】 Fast and future-proof charging technology for the whole range of exciting new USB-C devices. Charge compatible devices at high speed with 5V 3A output. Easy, hassle-free connection for power with the small, reversible USB-C connector. Each port automatically detects your device and fine tunes the output to charge it at maximum speed. Enjoy top charging speed with a "Zen" peace of mind. 【CHARGE-THOUGH FEATURE】 You can charge Zendure while charging your devices with a single wall charger, a feature rarely seen in other power banks. (10W+ power source is recommended, and the output of the power bank is up to 1.3A in charge-through mode) 【COMPACT & LIGHTWEIGHT】 A3TC is one of the most compact and lightweight external batteries in the market for its capacity, thanks to the use of top quality components. With 10,000 mAh capacity, this little thing can easily extend your phone usage 3-4 times. 【DURABILITY & STYLE】 Crush proof composite material, dual-injection molding and a shock-absorbing central belt make it one of the most durable and yet stylish external batteries available. In addition, the portable charger can maintain up to 95% of charge after six months in standby (when USB disconnected). A great feature for emergency backup. 【ULTIMATE COMPATIBILITY】 The Zendure A-Series is compatible with almost all Apple and Android smartphones, tablets and other USB-charged devices. Specially compatible with iPhone X, iPhone 8, Galaxy S8, Nintendo Switch. 【ZENDURE: CRUSH PROOF EXTERNAL BATTERIES FOR EVERYDAY LIFE】 Originated from one of the most successful external battery projects on Kickstarter It can survive being run over by a sedan. Yes, we mean it. Zendure strikes the perfect balance between durability and style.