Stay charged anywhere with this slim and lightweight power bank (a.k.a. portable charger) that fits in your pocket or bag. 10,000 mAh recharges a smartphone up to 3 times. A universal USB-A 2.4 amp port delivers up to 5V to quickly and safely charge devices like smartwatches, fitness bands, headphones, speakers, action cameras, and Bluetooth-enabled devices. A 5V 2.0 amp input allows the power bank to recharge quickly between uses.