※ This product does not include a charger. This is a set to attach a cooling fan to the Hitec X4 ADVANCED EX Pro charger/discharger (made with a 3D printer). ※ Please be aware that there may be unique layer lines. ※ There may be some scratches due to shape confirmation and attachment confirmation after creation. ※ The contents are as shown in photo 7. It is attached to the main unit via a U-shaped part. It is detachable, so it doesn't take up much space when carrying it. You can flip it up to the top when replacing the battery. Air is drawn in from the top and exhausted through the gaps at the front, back, left, and right. ※ The airflow direction can be reversed by changing the fan's mounting direction. It is also possible to exhaust the charger's fan upwards. ● 【Fan Overview, per unit】 ・ Power supply voltage: 5V ・ Power supply specification: USB ・ Current: 0.06A ・ Rotation speed: 3500rpm ・ Dimensions: 50mm x 50mm x 10mm ・ Wiring length: Approximately 50cm (may vary depending on the manufacturing lot of the wiring components) How about it as an accessory for mini 4WD or radio control car pits? Thank you.