The all new Ambrane Stylo Pro 27000mAh powerbank is made to deliver an optimum 20W output with high speed charge to all your devices. Bid adieu to low battery with Quick charge 3.0 and PD (Power delivery) Technology. Spend less time charging and more time entertaining with multiple charging ports. Stylo Pro comes with 12 layers of protection which makes the charging not just fast but safe and reliable. For any product related query, service and warranty kindly contact - 8929700222 or you can write to care@ambraneindia.com