Anywhere module was designed to be used with a power brick, but you can use it with a wall adapter too. As long as its amperage is enough to power up your setup. Check the needs of your rig using Polyend Anywhere Power Bank Requirements - tinyurl.com/ydc7hghe
Get a decent wall charger thou, at least 2.4A or higher. A laptop's USB port or phone charger might be not enough.