The T'nB 20000 mAh black PBU20000 power bank offers a huge 20,000 mAh energy storage capacity for travel and emergencies. Made with a reinforced black casing, featuring multiple USB output ports and a fast charging input, it allows you to recharge smartphones, tablets, and cameras multiple times without needing a wall outlet. The black finish gives it a sober and durable look. Indispensable for mobile professionals and campers.