* Comes with a charger and case. * Made in Japan * The 2020 model is compatible with a wireless controller (sold separately). Also, from the 2020 model, remote control and battery level check can be performed using a smartphone app via Bluetooth communication. * 4 Cell battery industry first * RD9010H / RD9020H (2020 new fan set) compatible product * Cannot be used in combination because it is not compatible with fan cables of models before 2019. 5V USB Output for others, Bluetooth, Smartphone App.