This power bank is suitable for nearly all kinds of mobile phones and digital products which have USB cable connector, providing several different charging adaptors. Keep your battery full on the go the entire day with this wireless suction power bank. Fast charge your devices on the go. Lithium polymer cell assures safety and efficiency. It provides a suction cap for phones to attach and detach on wireless charging. - 20000 mAh rechargeable Li-Pol battery - Protection from over-charging, over-discharging, overload and short circuit - Automatic turn on and off - Intelligent Power Manage Solution soft switch button, steady and high efficiency