ID card charger, selfie stick and charging treasure are all inseparable from travel now. Nowadays, ticket purchase, accommodation and consumption are almost inseparable from mobile phones, and because everyone is outdoors most of the time during the trip, the frequency of using mobile phones will be very high, so it is necessary to fully charge the mobile phones every night and bring a charging treasure for emergencies. The selfie stick is convenient for everyone to take pictures outside. Bank cards and cash, although it is convenient to pay by mobile phone at present, often need cash, especially in some mountainous areas or nearby areas where special agricultural products are sold. They may not all support mobile payment.