The Dark Energy Poseidon Nano Wireless Charger is designed for maximum portability. Despite its small size, it holds more than enough power for your devices while on the move. The Poseidon Nano is almost half the size of Poseidon Pro. Features3,000 mAh power capacity508 hours of power for a smartphone4+ hours of power for camping accessoriesOnly weighs 3.8 ozUSB -C port that will charge compatible devices at 12W speedsWater resistant IP67 tested3 ft. USB-C to USB-C Cable included