are more displays on Express Trains. Express Trains also offer wireless charging stations. In-Town Check-In In-town check-in and baggage check services are available at Taipei Main Station and . Baggage handling equipment is installed, including check-in counters, conveyor belts, container handling equipment, container elevators, and control systems. Baggage is transported from the check-in counter into containers, which are loaded onto Express Trains. Checked baggage is delivered to Terminal Two, where it is scanned and directed to the appropriate airline. Flight information Flight information display systems, which also carry information on TRA and THSR services from transfer stations, are installed at all stations served by Express Trains from Taipei Main Station to TPE, as well as at Taoyuan HSR station. Fares Fares on the Taoyuan Airport MRT are based on distance traveled and there is no fare difference between Commuter and Express services. Published one-way fares range from NT$30 to NT$160, with fares from Taipei Main Station to TPE priced at NT$160 and fares from Taoyuan HSR station to TPE priced at NT$30. Since October 2018, a NT$10 promotional discount on all published one-way fares has been applied due to the operational profitability of the line since service began. 30, 60, 90, and 120-day periodic tickets allowing unlimited rides on the Taoyuan Airport MRT within specified station pairs are available, priced at a 30, 35, 40, or 50% discount, respectively, on the price of 21 published round-trip fares between the specified station pairs per 30-day period (21 being the approximate average number of weekdays per month). Trips between airport stations, and between the airport stations and the airport hotel station, are free when using an IC card at the automatic gates. Rolling stock Passenger electric multiple units Kawasaki manufactured all Express trains and seven Commuter train sets in Japan, while Taiwan Rolling Stock Company (TRSC) manufactured the remaining Commuter train sets. The car body is constructed from stainless steel and each car is supplied with 750 V DC electricity from a third rail, powered by IGBT–VVVF inverters and conventional 3-phase AC induction motors provided by Mitsubishi Electric, and controlled with Siemens Mobility's Trainguard MT communications-based train control (CBTC) system, which has subsystems of automatic train control (ATC), automatic train operation (ATO) and automatic train protection (ATP). Of the 41 train sets, 18 are Express trains while 23 are Commuter trains. Four-car configurations are used for Commuter Trains, while Express Trains have