Mimgo Store 5V 2x18650 Battery Charger 5200mAh USB Power Bank Case Kit DIY Box For Phone GPS (Hot Pink) Material: compression wearable metal case Battery Type: 2 sections 18650(Battery not included) Rated capacity: 3.6V / 5200mAh Compact, practical, wearable, portable Shell size: 93 * 54* 21 mm