you charge this (cord not included) and it acts as an extra battery for your Nintendo Switch! bundle to save! pet free/smoke free home. The Ematic (EAPB624) Battery Bank is the perfect fast-charging device to use with the Nintendo Switch or a number of your portable devices. By using high-performance polymer batteries, this power bank is capable of storing up to 10000mAh of power to charge devices up to 5x while on the go. Both the charger and the dual-function backup battery support QC3.0 fast charging. Use this power bank with your Nintendo Switch, smartphones, tablets, e-readers, MP3 players, portable gaming devices, digital cameras, and other devices anywhere, anytime. This wireless portable charger is a combination of a fast wireless charger pad and a portable mobile power supply for fast charging of the devices you need to charge. The built-in high-power wireless charging transmitter and high-capacity 10000mAh can protect mobile phones and electronics.The power of the device is sufficient. No need to carry multiple cables indoors or outdoors, plus it is lightweight and portable. Perfect battery pack for everyday use, travel, camping or hiking, emergencies, commuters and families. Compatible with the Nintendo Switch Works with smartphones, tablets; e-readers, MP3 players; other portable gaming devices, digital cameras, and other devices Stores up to 10000mAh of power Charges your Nintendo Switch up to 5x from a single charge Supports Quick Charge 3.