Function: digital display with power, detachable, welding-free, with anti-reverse connection protection, can charge 21 18650 flat-head batteries, when the built-in battery can be used as a power bank, the normal version requires a charging cable, wireless fast charging The version does not require a charging cable and can be quickly. Hand-made DIY mobile power kit, self-configured mobile power, larger battery capacity and more , can better solve your charging problem. Suitable for people with greater charging needs, equipped with 3 charging interface types, for Micro, for ,for Type-C can charge the charging box. With power display, let you know the remaining power anytime and anywhere, and better charge your mobile phone or other devices. Comes with a lanyard, which is more convenient to carry, allowing you to take it wherever you go.Quick Charge + Wireless Charge Version Maximum Power: 5V-3A 9V-2A 12V-1.5A 3.4V-5.5V-5A, Wireless Charging :15w Colour:A:black Material:plastic Size:170