Which Nintendo Switch accessories I can use, in handheld mode to stop it getting warm every time use it handheld mode

To help mitigate the heat generated when using your Nintendo Switch in handheld mode, you can consider a few accessories designed to improve ventilation and comfort. Here are some recommendations:

**Cooling Stands or Fans**: There are various third-party cooling accessories that include built-in fans or additional ventilation features. These can help circulate air around your Switch while you're playing.

**Grip Controllers**: Some game grips are designed with better ventilation and can improve ergonomics. Look for grips that have airflow channels or are designed to help dissipate heat.

**Screen Protectors with Heat Dissipation**: Some tempered glass screen protectors are designed to enhance heat dissipation. While they may not directly cool the console, they can reduce heat buildup on the screen.

**Cooling Pads or Mats**: You can place the Switch on a cooling pad designed for electronics. These pads often have fans and are USB-powered, providing additional cooling when the Switch is docked.

**Carrying Cases with Ventilation**: If you need to transport your Switch while it's in use (like playing on the go), look for padded but ventilated cases that allow airflow.

**Play in a Cool Environment**: While not an accessory, ensure you're playing in a cooler room or using a fan to help with heat management.

**Regular Breaks**: Take breaks during long play sessions to allow the console to cool down naturally.

Remember that the Nintendo Switch is designed to operate within a certain temperature range, and a small amount of warmth during use is normal. However, if you notice excessive heat, it might also indicate a need for software updates or a console inspection.