1. Highly integrated: The three major parts of a traditional beer dispenser system (beer spear, regulator, and faucet) are integrated into one valve lid, eliminating the tedious assembly process and reducing the risk of wine leakage and air leakage. 2. The pressure gauge is upgraded: the normal pressure gauge indicates the outlet pressure of the regulator, and the user cannot know the true pressure of the beer in the mini keg; but the pressure gauge of this portable cross shaped beer dispenser kit is directly connected to the mini keg, the pressure of the beer can be "observed at a glance", and the corresponding CO2 pressure can be adjusted "depending on the craft beer types". 3. It is suitable for beer kegs of various shapes, capacities, and single and double layers, giving users a variety of choices in terms of capacity, shape, and insulation requirements. Each beer keg is designed with a handle for easy carrying to outdoors, parties, and picnic etc. 4. The large-diameter beer keg is convenient for cleaning and filling; it is equipped with different interface modes and can be "upgraded" to accept a variety of faucets.