Mighty Purse Sport Luxe Genuine Leather Phone Charging Bumbag Belted Satchel - Black Dimension: 5.3 x 7.8 x .8 inches Works with all micro-USB smartphones. Made From A Quilted Nylon Fabric & Premium Leather Trims Rechargable Battery Pack - Can Recharge A Smartphone approximately 2-4 times (4000mAh) with a single charge Simply plug into a USB port to charge